It has been reported that some patients have been misdiagnosed with Rheumatoid Arthritis, when in fact the correct diagnosis in their specific case was Chronic Fatigue Syndrome.
Chronic fatigue syndrome cannot be diagnosed by a specific test. The symptoms overlap with many other disorders. There is a specific criteria outlined for the diagnosis. The fatigue should be very severe that it hinders daily activities. The symptoms are not relive by rest are not lifelong. Finally they are worsened by phycsical activity or mental exertion. In addition to the above , the patient must have problems with focus, concentration or memory or experience dziness. Symptoms must be present for a period of at least six months.