Fibromyalgia and chronic fatigue syndrome: similarities and differences.
Buchwald, D·Rheumatic diseases clinics of North America·1996
This review compared ME/CFS and fibromyalgia (FM), two conditions that cause fatigue, muscle pain, and sleep problems. The researchers found that these two illnesses are very similar in their symptoms and how they affect people's lives, even though doctors use different criteria to diagnose them. Some patients have both conditions at the same time, which makes their suffering worse.