response: Well, the fatigue is not due to strenuous ongoing exertion, it is not much relived by rest, and it is not due to a previous medical condition. It is unexplained fatigue and severe functional impairment.
original_response: Well fatigue is not due to strenuous ongoing exertion, it is not much relived by rest, and it is not due to a previous medical condition.  It is unexplained fatigue and severity of functional impairment
history: I think I might have chronic fatigue syndrome because I'm so tired all the time Do you have long-term fatigue and other symptoms that limit a person's ability to carry out ordinary daily activities? I have been fatigue for awhile now. What kind of symptoms do you mean?
knowledge: The fatigue is not due to strenuous ongoing exertion, is not much relieved by rest, and is not due to a previous medical condition. Fatigue is a common symptom in many illnesses, but the unexplained fatigue and severity of functional impairment in CFS is comparatively rare.