Anorexia Nervosa (Supportive)
"Deliberate food restriction leading to significantly low body weight"
What is Chronic Migraine?
Anorexia Nervosa (AN) is a serious, potentially life-threatening eating disorder characterized by a persistent restriction of energy intake, an intense fear of gaining weight or becoming fat, and a disturbance in self-perceived body shape or weight. Individuals with AN maintain a body weight significantly below what is considered normal or healthy for their age, height, and gender, typically through caloric restriction, excessive exercise, binge-eating/purging behaviors (in the binge-purge subtype), or combinations thereof. The disorder is associated with severe medical complications affecting nearly every organ system, including cardiovascular dysfunction, bone loss, hormonal imbalances, and neurological changes, with the highest mortality rate of any psychiatric disorder.
Healthy Function
What your body should do
A healthy relationship with food involves eating in response to physiological hunger and satiety cues, maintaining a body weight that is natural for the individual's genetic blueprint and metabolic needs. The hypothalamus appropriately regulates appetite through ghrelin (hunger hormone) and leptin (satiety hormone), while the enteric nervous system communicates hunger and fullness signals to the brain via the vagal nerve. The prefrontal cortex successfully regulates food-related impulses without excessive preoccupation. The menstrual cycle functions regularly in reproductive-age females, indicating adequate energy availability. Body temperature remains stable through appropriate thermoregulation. Energy levels support normal daily activities, exercise, and cognitive function. Bone mineral density is maintained through adequate nutrition and appropriate hormonal signaling. Cardiovascular function remains stable with normal heart rate variability and blood pressure regulation.
When Things Go Wrong
Signs of chronification
- Pain threshold lowers over time
- More frequent attacks
- Brain stays in alert mode
- Medication stops working
How This Develops
Understanding the biological mechanisms helps us target the root cause
Point 1
Understanding the mechanism helps us target the root cause rather than just treating symptoms.
Recognizing All Symptoms
Chronic migraine affects multiple systems. Understanding your symptoms helps us identify the underlying mechanisms.
Physical Symptoms
28 symptoms
- Significantly low body weight below minimally normal (BMI <17.5 or <18.5)
- Rapid, unintentional weight loss
- Amenorrhea (absence of menstrual periods for 3+ cycles)
- Breast atrophy in females
- Testicular atrophy in males
- Loss of sexual interest and function
- Cold intolerance
- Hypothermia (low body temperature)
- Dry skin and brittle nails
- Hair loss or fine vellus hair (lanugo) on body
- Dizziness and lightheadedness
- Fainting (syncope), especially orthostatic
- Bradycardia (abnormally slow heart rate, often <50 bpm)
- Hypotension (low blood pressure)
- Heart palpitations or arrhythmias
- Chest pain or tightness
- Shortness of breath with minimal exertion
- Fatigue and low energy
- Muscle weakness
- Abdominal pain and bloating
- Constipation
- Delayed gastric emptying
- Early satiety
- Osteopenia or osteoporosis
- Fractures (stress fractures, vertebral compression fractures)
- Joint pain
- Edema (fluid retention) during refeeding
- Refeeding syndrome (potentially fatal complications)
Cognitive Symptoms
17 symptoms
- Preoccupation with food, calories, and nutrition
- Rigid thinking about 'safe' and 'dangerous' foods
- Compulsive checking of food labels, calories
- Obsessive thoughts about weight and body shape
- Difficulty concentrating
- Impaired decision-making
- Black-and-white or all-or-nothing thinking
- Perfectionism
- Rituals around food preparation and eating
- Cooking for others while refusing to eat
- Hoarding or hiding food
- Social withdrawal and isolation
- Anxiety around meals
- Denial of severity of illness
- Lack of insight into condition (anosognosia)
- Memory impairment
- Difficulty with executive function
Emotional Symptoms
15 symptoms
- Intense fear of gaining weight
- Fear of becoming 'fat' despite being underweight
- Body dysmorphia (distorted body image)
- Low self-esteem tied to weight/shape
- Feelings of worthlessness
- Depression and depressed mood
- Anxiety (generalized, social, health)
- Irritability and mood swings
- Social withdrawal
- Shame and guilt around eating
- Perfectionism
- Emotional numbing
- Hopelessness
- Suicidal ideation
- Inflexibility
Metabolic Symptoms
14 symptoms
- Hypothyroidism (euthyroid sick syndrome)
- Hypothalamic amenorrhea
- Hypogonadotropic hypogonadism
- Severe leptin deficiency
- Elevated ghrelin
- Elevated cortisol
- Growth hormone resistance
- Insulin resistance (in some cases)
- Dyslipidemia (elevated LDL, reduced HDL)
- Hypoglycemia
- Electrolyte imbalances (hypokalemia, hyponatremia, hypophosphatemia)
- Metabolic acidosis (in purging)
- Reduced basal metabolic rate
- Impaired glucose tolerance
Conditions That Occur Together
These conditions often coexist with chronic migraine due to shared mechanisms
Major Depressive Disorder
50-70% comorbidity; shared neurobiological pathways involving serotonin and HPA axis; starvation itself causes depressive symptoms; social withdrawal and negative self-evaluation are common features
Anxiety Disorders
40-60% comorbidity; generalized anxiety, social anxiety, and OCD commonly co-occur; anxiety about food, eating, and weight; often pre-dates AN development
Obsessive-Compulsive Disorder
10-20% comorbidity; overlapping features of rigidity, rituals, and preoccupations; food-related compulsions common; may be distinct subtype
Autism Spectrum Disorder
10-15% comorbidity; shared features of rigidity, sensory issues around food, and restricted interests; ASD may predispose to AN development
Substance Use Disorders
15-25% comorbidity; alcohol and stimulant use to suppress appetite or control weight; may develop in recovery from AN
Post-Traumatic Stress Disorder (PTSD)
15-25% comorbidity; trauma often precedes AN; restrictive eating may represent attempt to regain control; ACE scores correlate with AN severity
Personality Disorders
20-30% comorbidity, particularly avoidant, dependent, and OCPD; perfectionism and rigidity in OCPD may predispose; avoidant personality involves social withdrawal
Suicide and Self-Harm
Elevated suicide risk; 20-40% of AN deaths are by suicide; self-harm behaviors may co-occur, particularly in binge-purge subtype
Type 1 Diabetes
Diabetes mellitus type 1 increases risk 2-3x; insulin omission for weight control; complex management challenges; 'diabulimia' pattern
Gastrointestinal Disorders
Functional GI disorders common; IBS in 30-50%; may be consequence of malnutrition or contribute to food avoidance
Conditions to Rule Out
These conditions can present similarly but have distinct features
Anorexia Nervosa (Restricting Type)
Low weight, fear of gaining weight, body image disturbance
Weight loss achieved through dietary restriction, fasting, or excessive exercise WITHOUT binge-purge behaviors
Anorexia Nervosa (Binge-Purge Type)
Low weight, fear of gaining weight, body image disturbance
Recurrent episodes of binge eating OR inappropriate compensatory behaviors (vomiting, laxatives, diuretics, enemas) in addition to restriction
Atypical Anorexia Nervosa
Fear of weight gain, body image disturbance, eating disorder behaviors
All AN criteria met except weight is normal or above normal despite significant weight loss; equal severity and medical risk
Avoidant/Restrictive Food Intake Disorder (ARFID)
Significant weight loss, nutritional deficiency, dependence on supplements
No fear of gaining weight; disturbance not due to concerns about shape/weight; may stem from sensory sensitivities, lack of interest, or aversive experiences
Bulimia Nervosa
Binge eating, compensatory behaviors, body image disturbance
Body weight typically within or above normal range; binge-purge episodes without prolonged restriction
Other Specified Feeding or Eating Disorder (OSFED)
Disturbed eating patterns, body image concerns
Does not meet full criteria for AN, BN, or ARFID; includes subthreshold cases
Crohn's Disease
Weight loss, amenorrhea, malnutrition
Gastrointestinal symptoms (diarrhea, abdominal pain); inflammatory markers; endoscopic findings; no fear of weight gain
Celiac Disease
Weight loss, diarrhea, nutritional deficiencies
Autoimmune enteropathy with villous atrophy; positive celiac serology; GI symptoms; no fear of weight gain
Hyperthyroidism
Weight loss, amenorrhea, anxiety, tachycardia
Elevated thyroid hormones (T3, T4) with suppressed TSH; heat intolerance rather than cold; goiter; tremor
Addison's Disease (Adrenal Insufficiency)
Weight loss, fatigue, hypotension, hyperpigmentation
Primary adrenal failure with elevated ACTH, low cortisol; hyperkalemia; Addisonian crisis possible
Cancer/Neoplasms
Significant weight loss, cachexia
Presence of malignant process; constitutional symptoms; positive imaging/laboratory findings
Depression (Melancholic Features)
Weight loss, appetite loss, anhedonia
No fear of weight gain; no body image disturbance; melancholic features (non-reactive mood, psychomotor retardation)
What's Driving Your Migraines
Identifying the underlying causes allows us to target treatment effectively
Genetic Predisposition
40-70% heritability; family history increases risk 4-10x; genes involved in serotonin transport (5-HTTLPR), dopamine signaling (DRD2, DRD3), and BDNF; epigenetic modifications from environmental triggersFamily history; genetic testing for risk variants; epigenetics assessment
Neurobiological Dysregulation - Reward and Motivation
45% - Altered dopamine and opioid reward pathways; food becomes aversive rather than rewarding; increased reward sensitivity to weight lossClinical assessment; fMRI studies; psychometric testing
Serotonin Dysregulation
40% - Altered serotonergic activity affects mood, impulse control, and satiety signaling; perfectionism and anxiety linked to 5-HT dysfunctionSerotonin metabolites; clinical response to SSRIs; tryptophan ratio
Temperamental Factors
35% - Perfectionism, anxiety, harm avoidance, and negative emotionality are risk traits; obsessionality and rigidityTemperament assessment (TCI, ASQ); personality evaluation
Body Image Dysregulation
50% - Distorted body perception; inability to accurately judge own body size; overestimation of body sizeBody image assessment tools; figural stimuli; ecological momentary assessment
Perfectionism
45% - Perfectionistic traits drive extreme dietary control; black-and-white thinking; fear of making mistakesPerfectionism scales (APS-R, CDP); clinical interview
Early Life Trauma and Adverse Childhood Experiences
30-50% - ACEs correlate with AN development; trauma may precede onset; controlling eating as coping mechanismACE questionnaire; trauma history; dissociation assessment
Social and Cultural Factors
30% - Cultural emphasis on thinness; participation in weight-focused sports or activities; teasing or bullying about weightSocial history; cultural assessment; history of weight-related teasing
Family Dynamics
25% - Enmeshment, overprotection, rigidity, and conflict avoidance in family systems; high expressed emotionFamily assessment; family meals observation; FACES-IV
Stressful Life Events
30% - Onset often follows significant stressors; illness, loss, transition; loss of control in one domain leads to control in eatingLife events assessment; stress vulnerability evaluation
Autonomic Dysregulation
25% - Vagal hypertonicity contributes to bradycardia, hypotension, and gastrointestinal dysmotility; autonomic inflexibilityHeart rate variability; tilt table testing; autonomic function tests
Inflammation and Immune Activation
20% - Low-grade inflammation may affect brain function; increased pro-inflammatory cytokines; may affect appetite regulationCRP, IL-6, TNF-alpha; autoimmune panel
Key Laboratory Markers
These biomarkers help us understand your specific migraine mechanisms
What Happens If Left Untreated
Understanding the consequences helps you make informed decisions about your health
Cardiac Complications
Weeks to months; can be suddenBradycardia, arrhythmias, prolonged QT interval, mitral valve prolapse, reduced cardiac muscle mass, pericardial effusion, sudden cardiac death (most common cause of death in AN)
Refeeding Syndrome
Days to weeks after refeeding beginsPotentially fatal; severe hypophosphatemia, hypokalemia, hypomagnesemia; cardiac dysfunction, respiratory failure, seizures, delirium, death
Bone Loss and Osteoporosis
Months to yearsOsteopenia in 50%, osteoporosis in 30+%; increased fracture risk 2-7x; vertebral compression fractures; stress fractures; may be irreversible
Reproductive System Shutdown
Weeks to monthsHypothalamic amenorrhea; infertility; reduced bone density from estrogen deficiency; sexual dysfunction; can persist after weight restoration
Neurological Changes
Months to yearsBrain atrophy (reduced gray and white matter); cognitive impairment; difficulty with concentration and memory; potentially reversible with recovery
Electrolyte Imbalances
Acute or chronicHypokalemia, hyponatremia, hypophosphatemia, hypomagnesemia; can cause cardiac arrhythmias, weakness, seizures, death
Gastrointestinal Complications
VariableGastroparesis, constipation, intestinal obstruction, pancreatitis, liver dysfunction, superior mesenteric artery syndrome
Death
Any stage; highest mortality of any psychiatric disorder20% mortality at 20 years; 5-10% standardized mortality ratio; causes include cardiac complications (50%), suicide (20%), other medical complications
Chronic Illness and Disability
YearsMany patients develop chronic AN; ongoing medical complications; inability to maintain employment or relationships; significant disability
Psychiatric Comorbidities
OngoingDepression, anxiety, OCD, PTSD, substance use, personality disorders; increased suicide risk; impaired quality of life
Impaired Social and Occupational Functioning
Immediate and progressiveSocial isolation; inability to work or attend school; strained relationships; financial difficulties
Time Matters
Don't wait for symptoms to worsen. Early intervention leads to better outcomes.
How is Chronic Migraine Diagnosed?
Comprehensive evaluation to identify triggers, contributing factors, and appropriate treatment
Comprehensive Metabolic Panel
Purpose:
Assess metabolic function and electrolytes
Glucose, electrolytes, liver function, kidney function; critical for detecting electrolyte imbalances and hypoglycemia
Complete Blood Count
Purpose:
Assess for anemia and infection
Hemoglobin, hematocrit, white blood cells, platelets; anemia common
Hormone Panel
Purpose:
Assess endocrine dysfunction
TSH, T3, T4, cortisol (AM/PM), LH, FSH, estradiol, testosterone, DHEA-S, leptin, ghrelin, growth hormone, IGF-1
Nutritional Markers
Purpose:
Assess nutritional status
Vitamin D, B12, folate, iron studies, ferritin, albumin, prealbumin, transferrin, calcium, phosphorus, magnesium, zinc
Inflammatory Markers
Purpose:
Assess inflammation
CRP, ESR
Bone Density Testing (DEXA)
Purpose:
Assess bone health
Bone mineral density at spine and hip; T-score and Z-score; osteopenia/osteoporosis diagnosis
Cardiac Assessment
Purpose:
Assess cardiac function and risk
ECG (rhythm, rate, QT interval), echocardiogram if indicated
Gastrointestinal Assessment
Purpose:
Assess GI function
Abdominal exam; consider gastric emptying study if severe symptoms
Validated AN Assessment Tools
Purpose:
Establish diagnosis and baseline severity
Eating Disorder Examination Questionnaire (EDE-Q), SCOFF questionnaire, Eating Attitudes Test (EAT-26)
Psychological Assessment
Purpose:
Assess comorbidities and psychological features
PHQ-9 (depression), GAD-7 (anxiety), Y-BOCS (obsessions), personality assessment
Body Composition Analysis
Purpose:
Assess body composition
DEXA for body fat percentage; bioimpedance; BIA
Structured Clinical Interview
Purpose:
Establish DSM-5 diagnosis
SCID-5-CV or MINI; detailed eating disorder assessment
Our Integrative Approach
A comprehensive, phased approach to treat chronic migraine at its source
Medical stabilization, risk assessment, building alliance
Medical stabilization, risk assessment, building alliance
Complete medical evaluation and vital sign assessment,Electrocardiogram and cardiac monitoring,Comprehensive laboratory testing,Assessment for refeeding syndrome risk,BMI calculation and percent median BMI assessment,Evaluate need for hospitalization (medical or psychiatric),Establish therapeutic alliance and trust,Psychoeducation about AN as illness,Motivation enhancement,Begin meal planning with patient,Monitor electrolytes, phosphorus, magnesium closely,Address electrolyte abnormalities,Medical monitoring 1-3 times weekly
Restore weight to healthy range, normalize eating patterns
Restore weight to healthy range, normalize eating patterns
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Sustain recovery, prevent relapse, address underlying factors
Sustain recovery, prevent relapse, address underlying factors
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Sustain recovery, optimize health, quality of life
Sustain recovery, optimize health, quality of life
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Supporting Your Treatment
Evidence-based lifestyle modifications to enhance treatment effectiveness
What Success Looks Like
Body weight restored to healthy range (BMI >18.5 or >20 for adolescents)
Regular menstrual cycles restored (for females)
Normal heart rate (>50 bpm) and blood pressure
Normal eating patterns with 3 meals + snacks daily
Ability to eat a variety of foods without extreme anxiety
Reduction or elimination of compensatory behaviors
Improved body image and self-esteem
Normal thyroid function (euthyroid)
Improved bone density on follow-up DEXA
Resolution of electrolyte abnormalities
Improved mood and reduced anxiety
Return to normal social and occupational functioning
No longer meeting diagnostic criteria for AN
Quality of life improvement
Frequently Asked Questions
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