What is fibromyalgia?

Common cause of chronic widespread musculoskeletal pain, fatigue, cognitive disturbance, psychiatric symptoms and multiple somatic symptoms. Unknown etiology, no evidence of tissue inflammation. Pt look well, no abnormalities in PE other than tenderness and all labs are normal. Some consider it a psychosomatic disorder, others suggest disorder of pain regulation (central sensitization) associated with other conditions that may cause pain, disruption of sleep or psychiatric symptoms.