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Chronic fatigue syndrome (CFS) causes persistent fatigue (exhaustion) that affects everyday life and doesn't go away with sleep or rest.
Our Health A-Z contains more information on Chronic fatigue syndrome.
If you are worried about this condition you can try our free AI Symptom Checker here.
Fibromyalgia, also called fibromyalgia syndrome, is a long-term condition which causes pain all over the body.
Our Health A-Z contains more information on Fibromyalgia.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.