Conditions that are felt to be central pain sensitivity syndromes that commonly coexist in Fibromyalgia
Tension/migraine headache (50%–60%).
Irritable bowel syndrome (IBS, 40%).
Restless leg/periodic limb movement syndrome (15%).
Urinary frequency/urgency (including interstitial cystitis).
Primary dysmenorrhea/chronic pelvic pain/urethral syndrome.
Hypersensitivity and multiple chemical sensitivity syndrome (odors, bright lights, loud noises, medications).