Leonard A. Jason looks into the movement to change the name of chronic fatigue syndrome to myalgic encephalomyelitis:

Chronic fatigue syndrome is an illness as debilitating as Type II diabetes mellitus, congestive heart failure, multiple sclerosis, and end-stage renal disease. Yet 95% of individuals seeking medical treatment for CFS reported feelings of estrangement; 85% of clinicians view CFS as a wholly or partially psychiatric disorder; and hundreds of thousands of patients cannot find a single knowledgeable and sympathetic physician to take care of them. Patients believe that the name CFS has contributed to health care providers as well as the general public having negative attitudes towards them. They feel that the word “fatigue” trivializes their illness, as fatigue is generally regarded as a common symptom experienced by many otherwise healthy individuals. Activists add, that if bronchitis or emphysema were called chronic cough syndrome, the results would be a trivialization of those illnesses.

David Tuller has more on the subject.