Fibromyalgia, fy broh my AL jee uh, is a condition in which people experience long-lasting, severe pain in muscles and other soft tissues throughout their bodies. Patients with fibromyalgia also have places on their bodies called tender points that are unusually sensitive. Physicians test for tender points by pressing firmly where the points are known to occur. Fibromyalgia patients feel pain from an amount of pressure that would not seem uncomfortable to people without the disorder.