Fibromyalgia is a condition that causes pain all over the body (also referred to as widespread pain), sleep problems, fatigue, and often emotional and mental distress. People with fibromyalgia may be more sensitive to pain than people without fibromyalgia. This is called abnormal pain perception processing. The cause of fibromyalgia is not known, but it can be effectively treated and managed. Some symptoms you may experience are pain and stiffness all over the body, fatigue and tiredness, depression and anxiety, sleep problems, Problems with thinking, memory, and concentration, Headaches, including migraines, and tingling or numbness in hands and feet and more.