“The severe exacerbation of symptoms following exercise, as seen in CFS patients, is not present in other disorders where fatigue is a predominant symptom such as depression, rheumatoid arthritis, systemic lupus erythematosus, or multiple sclerosis. 10,11” ExerciseChronic Fatigue SyndromeMe CfsInvisible IllnessPost Exertional Malaise Author:Jo Nijs