Fibromyalgia is a common chronic pain disorder that affects the central nervous system and causes widespread muscle pain and tenderness. It is accompanied by other symptoms like fatigue, mood changes, and neurological issues. While it can affect people of any age or gender, 80% of fibromyalgia patients are female. There is no definitive test for fibromyalgia, so it is diagnosed based on a patient's ongoing symptoms of muscle pain and tenderness. Treatments aim to relieve symptoms and may include medications, physical therapy, or tailored treatment plans.