The following description of fibromyalgia pain is from the National Institutes of Health:
http://www.nlm.nih.gov/medlineplus/fibromyalgia.html
Fibromyalgia makes you feel tired and causes muscle pain and "tender points." Tender points are places on the neck, shoulders, back, hips, arms or legs that hurt when touched. People with fibromyalgia may have other symptoms, such as trouble sleeping, morning stiffness, headaches, and problems with thinking and memory, sometimes called "fibro fog."