To my knowledge Peripheral resistance to thyroid hormones is the cause of fibromyalgia.

http://www.drlowe.com/QandA/askdrlowe/resistnc.htm

Their is a lot of information out their regarding this particularly by Dr Lowe.

Dr Gina Honeyman actually ran the centre for metabolic health / rehabiliation but the name has been changed likely to add chiropractor services to the existing facility.

No i have not been their, but i do know someone who has visited her from the U.S. who has had success with metabolic rehabilitation although they did not suffer from fibromyalgia.