Infectious:

• Swollen and tender lymph nodes
• Sore throat
• Night sweats
• Recurrent flu-like symptoms
• Abdominal pain and nausea
• Weakness and extreme malaise
• Painful muscles, joints, and nerves
• Chronic and/or recurring infections
• New onset or increased severity of allergies
• Post exertional malaise or

exercise intolerance (ME and CFS)

• Loss of previous levels of

physical and mental functioning

• Worsening of symptoms with stress

Neurological:

• Cognitive impairment
• Disordered sleep
• Perceptual and sensory disturbances
• Postural orthostatic tachycardia syndrome (POTS)
• Ataxia
• Severe headaches
• Mental fatigue
• Seizures

Immunological:

• Abnormal NK cell number and/or function
• Inflammatory cytokine profile indicating abnormal levels of inflammation