SymptomsBy Mayo Clinic staff
Chronic fatigue syndrome has eight official symptoms, plus the central symptom that gives the condition its name:
- Loss of memory or concentration
- Sore throat
- Enlarged lymph nodes in your neck or armpits
- Unexplained muscle pain
- Pain that moves from one joint to another without swelling or redness
- Headache of a new type, pattern or severity
- Unrefreshing sleep
- Extreme exhaustion lasting more than 24 hours after physical or mental exercise
When to see a doctor
Fatigue can be a symptom of many illnesses, such as infections or psychological disorders. In general, see your doctor if you have persistent or excessive fatigue.
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