Chronic Fatigue Syndrome is a complicated and frustrating disorder that causes a number of symptoms, most significantly a sense of profound fatigue that is not alleviated with rest. This fatigue is often exacerbated by any type of activity, both mental and physical.
People suffering from Chronic Fatigue Syndrome usually function at much lower levels of activity than before the onset of the disorder, and have difficulty with everyday activities. Other symptoms include weakness, memory difficulties, insomnia, headaches, sore throat, muscle pain, and joint pain (without outward signs of inflammation).