I found some insteresting, simple but to the point, explanations by Dr. Randy P. Martin.at sharecare fibromyalgia.
I particularly like "What Causes Fibromyalgia? (1:48)" as it points out to what i've said here before: Fibromyalia is more in the Brain than in the Body.
In the sama place we can listen to Dr. Sean Mackey from the Pain Management Center - Stanford Medicine, How Can I Relieve Chronic Pain from Conditions Like Fibromyalgia? is also very instructive.
From different things Ive read up on it is to do with the brain trouble is Im having trouble finding mine hope you have a good weekend take care gentle hugs