Fibromyalgia is the most common musculoskeletal condition after osteoarthritis. Still, it is often misdiagnosed and misunderstood. Its characteristics include widespread muscle and joint pain and fatigue as well as other symptoms.
Fibromyalgia can lead to depression and social isolation. Its exact cause is unknown but is believed to involve psychological, genetic, neurobiological and environmental factors.
Symptoms of fibromyalgia include: chronic muscle pain, muscle spasms, or tightness; moderate or severe fatigue and decreased energy; insomnia or waking up feeling just as tired as when you went to sleep; stiffness upon waking or after staying in one position for too long; difficulty remembering, concentrating, and performing simple mental tasks (“fibro fog”); abdominal pain, bloating, nausea, and constipation alternating with diarrhea (irritable bowel syndrome); tension or migraine headaches; jaw and facial tenderness; sensitivity to one or more of the following: odors, noise, bright lights, medications, certain foods, and cold; feeling anxious or depressed; numbness or tingling in the face, arms, hands, legs, or feet; increase in urinary urgency or frequency (irritable bladder); reduced tolerance for exercise and muscle pain after exercise; a feeling of swelling (without actual swelling) in the hands and feet.
Fibromyalgia symptoms may intensify depending on the time of day — morning, late afternoon, and evening tend to be the worst times.
Symptoms may also get worse with fatigue, tension, inactivity, changes in the weather, cold or drafty conditions, overexertion, hormonal fluctuations (such as just before your period or during menopause), stress, depression, or other emotional factors.
If the condition is not diagnosed and treated early, symptoms can go on indefinitely, or they may disappear for months and then recur.