Chronic Fatigue Syndrome (CFS/ME)

Chronic Fatigue Syndrome, also known as Myalgic Encephalomyelitis (ME/CFS), is a complex, long-term illness characterized by profound fatigue that is not improved by rest and may be worsened by physical or mental exertion.

Book Consultation Learn More

Understanding Chronic Fatigue Syndrome

What is Chronic Fatigue Syndrome?

Healthy Baseline

Optimal function

When Chronic Fatigue Syndrome Occurs

Common presentations

Types & Variants

Types of Chronic Fatigue Syndrome (CFS/ME)

Classic ME/CFS

Most common presentation

The typical presentation with all hallmark symptoms

Clear post-exertional malaise
Profound fatigue lasting 6+ months
Unrefreshing sleep
Cognitive dysfunction
Orthostatic intolerance

Post-Infectious ME/CFS

Up to 75% of cases

ME/CFS that develops following an infection

Often begins after viral or bacterial infection
May improve over time in some cases
Common triggers: EBV, COVID-19, Lyme
Can occur at any age
Sometimes called post-viral fatigue syndrome

Atypical ME/CFS

Less common

ME/CFS with unusual or less common features

May have atypical onset or progression
May involve unusual symptoms
Often associated with other conditions
May have different treatment responses

Mild/Moderate/Severe Spectrum

Distribution across spectrum varies

Classification by functional impairment severity

Mild: Can work with accommodations
Moderate: Reduced daily activity, often housebound
Severe: Bedridden, unable to care for self
Very severe: Requires tube feeding, intensive care

Pathophysiology

How This symptom Develops

Understanding the biological mechanisms behind this symptom helps explain why certain treatments are effective

Step

Mitochondrial Dysfunction

Step

Immune System Dysregulation

Step

Autonomic Nervous System Dysfunction

Step

HPA Axis Dysregulation

Step

Neuroinflammation

Understanding Helps Treatment

By understanding how This symptom develops at the physiological level, our medical team can target treatments more precisely. This knowledge allows us to address not just the symptoms, but the underlying mechanisms driving your condition. Each step in this process represents a potential intervention point for effective treatment.

Discuss your case with our specialists

Root Causes

What's Causing Your This symptom

Identifying the underlying causes of this symptom allows us to target treatment effectively for lasting results.

How We Assess Causes

Our comprehensive evaluation combines detailed health history, advanced diagnostic testing, and constitutional assessment to identify the unique combination of factors contributing to your this symptom.

Health HistoryPhysical ExamLab TestingConstitutional Assessment

Important Note

The probabilities shown are based on clinical research and our patient population. Your individual case may have different contributing factors. A comprehensive evaluation is necessary to determine your specific root causes.

Signs & Symptoms

Signs & Symptoms of Chronic Fatigue Syndrome (CFS/ME)

Frequency

Timing

Duration

Clustering

Associated Conditions

Connection: 30-50% of ME/CFS patients meet criteria for fibromyalgia; they frequently co-occur

Connection: Common comorbidity; orthostatic symptoms often overlap

Connection: Higher rates of autoimmune disorders in ME/CFS patients

Connection: While sleep is unrefreshing, specific sleep disorders may also be present

Connection: Very common comorbidity, affecting over 50%

Connection: Significant overlap; headaches are a common ME/CFS symptom

Clinical Assessment

Clinical Assessment for Chronic Fatigue Syndrome

Medical History Review

Comprehensive assessment of symptom onset, progression, and impact on daily life. Rule out other conditions that can cause similar symptoms.

Why it matters:

Physical Examination

Assessment of orthostatic vitals, lymph nodes, tender points, and general physical condition. Pay attention to signs of dysautonomia.

Why it matters:

Laboratory Testing

Complete blood count, thyroid function, inflammatory markers, vitamin levels, celiac screening, and other tests to rule out other conditions

Why it matters:

Specialized Testing

Consider sleep studies, tilt table testing, cardiopulmonary exercise testing (CPET), and autonomic function testing if available

Why it matters:

Criteria-Based Diagnosis

Apply diagnostic criteria (Canadian Consensus Criteria, IOM Criteria, or other) to confirm ME/CFS diagnosis

Why it matters:

Differential Diagnosis

Both involve fatigue and widespread pain, but ME/CFS has PEM as the hallmark, while fibromyalgia centers on pain

Key Distinction:

Thyroid fatigue is typically constant, not worsened by exertion; thyroid function tests are abnormal

Key Distinction:

Depression may cause fatigue but typically lacks PEM; anhedonia and low mood are more prominent

Key Distinction:

Daytime sleepiness rather than fatigue; improves with sleep apnea treatment

Key Distinction:

Lupus, RA, and others have specific autoantibodies and clinical features

Key Distinction:

Proper diagnosis requires evaluation by a qualified healthcare professional. Do not self-diagnose based on this information.

Our 6x6 Service Matrix for ME/CFS

At Healers Clinic, we offer comprehensive treatment integrating all 36 services from our 6x6 Service Matrix to address Chronic Fatigue Syndrome from multiple angles.