I was on my PubMed acount and looking over several hundred reports on causes of fibro. It appears that they all are now in agreement. I am posting two as they are consistant with all the rest.
http://www.ncbi.nlm.nih.gov/pubmed/21692974
http://www.ncbi.nlm.nih.gov/pubmed/21692974
"Central to the pathogenesis of the illness is a constant hyperadrenergic state that could lead to a breakdown of the system. In such instances neuroplasticity takes place, establishing abnormal connections between the sympathetic nervous system and the nociceptive fibers. The resulting clinical syndrome would be a neuropathic type of pain"
Treating a hyperadrenergic state is the same in all allostatic load disorders - you have to use ways to reduce the learned pathways of the alerting response. Whether through physical means like stretching, meditation, stress techniques etc or psychological trechniques to stop the chronic activtion of these systems.
Pain can be a learned naurological pathway - an example is amputees that still has pain in the removed limb. I have just read a book on the ways the brain forms a pain neuro-pathway and then locks into it.
"Any drug that produces anesthesia of the nervous system like pain medications, antidepressants or
tranquilizers will prevent the brain from unlearning the dysfunctional
response."