Health Interests Daily Med. News Publications Health Orgs. What Is Chronic Fatigue Syndrome Please review to our Health Advisory Message before proceeding. People with this disease aren't just tired. They're constantly exhausted, not just for a few days, but day in and day out for six months or longer.
Fatigue is only the beginning of the symptoms.
CFS can generate flulike symptoms, such as sore throat, painful lymph nodes and aching muscles. Others symptoms include problems concentrating and bouts of confusion and forgetfulness. Many people with CFS have no tolerance for exercise. So overwhelming is the fatigue that the victim can scarcely perform the most necessary functions such as getting dressed or getting out of the bed to go to the bathroom. It just engulfs you.