2. Fibromyalgia
The first symptom of fibromyalgia is usually pain all over that rarely stops. Fibromyalgia is a poorly understood disease that results in muscle pain, sleep problems, fatigue, and painful tender points. Depression, memory issues, headaches, and numbness and tingling are common side effects.
Current research indicates that repeated nerve stimulation increases neurotransmitters and sensitizes the brain to pain. The brain then overreacts to pain signals. Since the cause of the disease is not clear, the treatments generally can only manage symptoms.