Fibromyalgia is a disorder characterized by widespread muscle pain, fatigue, and tender points. It often occurs in women ages 35-60 and symptoms include muscle and joint pain, sleep issues, headaches, and tender points in specific areas. While the exact cause is unknown, factors like physical trauma, genetics, and repetitive injuries may play a role. There is no lab test to diagnose fibromyalgia, rather it is diagnosed based on reported symptoms and tender points. Treatments focus on pain management through medications, exercise, acupuncture, and lifestyle changes like stress management and sleep hygiene.