• Systemic
• Fever & Night sweat
• Weight loss or gain
• Lymph nodes: Swollen in neck
• Respiratory
• Onset: Sudden with flu-like illness
• Sore throat; Cough
• Musculoskeletal
• Muscle pain
• Malaise:  after exertion
• Joint pain
• Generalized weakness (subjective)
• Morning stiffness
• Neuropsychological
• Awaking unrested
• Concentration: Poor
• Headaches
• Forgetful
• Depression or anxiety
• Alcohol: exacerbates symptoms
• Tingling/Numbness in extremities
• Photophobia (intolerance of bright light)
• Functional status:
• Intermittently bedridden
  

SIMILAR CONDITIONS: (these may need to be excluded)

• Connective tissue diseases
• Thyroid disease
• Infections
• Side-effects of some medication
• Neuromuscular disorders