People who develop fibromyalgia may complain of fatigue, memory problems and disturbances with sleep and mood. Fibromyalgia is often hard to diagnose and treat because there is not a single cause and also no outward signs of the condition. More than 50 years of medical studies suggests that there are now more effective ways of diagnosing and treating fibromyalgia. Catherine Dolf explains in this week's JAMA Report.