Hey droc2013, welcome to the forum.
It doesn't sound like Fibromyalgia
I would suggest you rule out low thyroid function first, as in low thyroid conditions, any organ, any bodily system can be affected and functioning at sub-optimum levels.
Note: Re:Thyroid testing
Thyroid Serum testing is flawed, as it is not necessarily
indicative of cellular thyroid function !
Most conventional doctors order TSH,T3 and T4 at best.