Is fibromyalgia a diagnosis given when a physician cannot figure out was is wrong? is it not a syndrome?

No single cause: Is fibromyalgia (FM) convenient label for elusive cause? FM is name for chronic widespread pain associated w. restless sleep, fatigue, confusion, & depression. Cause is multifactorial. Different sufferers inflicted via varying etiologies: femaleness (loose joints & childbirth), pelvic mechanical injuries, obesity, global loss muscle tone (bed rest & inactivity from disease) & gravity all conjoin.