Chronic Fatigue Syndrome

Symptoms include fever, sore throat, swollen glands (lymph nodes), extreme fatigue, appetite loss, recurrent upper respiratory tract infections, intestinal problems, anxiety, depression, irritability, mood swings, sleep disturbances, temporary memory loss, headache, aching muscles and joints. It is often misdiagnosed as depression or influenza. The exact cause of CFS is unknown. Viral and fungal infections have been related to CFS.