How to know when do symptoms of fibromyalgia start or possibly can start?

Anytime: Fibromyalgia is seen in young teenagers and pwards. There is no time element as to when symptoms may occur.

Difficult: ? when fibromyalgia (FM) symptoms start. The event can be remote and forgotten. FM is a chronic soft tissue disorder aroused by repetitive gravitational stress, over time, on joints with loose & injured ligaments; from mechanical lifting & fall injuries, childbirth &/or inherited hypermobile joints. The insidious, progressive, & long-term nature of FM evolution oft shrouds causation relationships.