I saw internal medicine at Mayo to confirm my Fibro. I had never heard of it before. Maybe checking with internal med doctors in your area?
They then put me with a sleep doctor, hematology for my iron deficiency, cardio and vascular doctors and Neurology next month... and they all give directions to my primary to follow. So far it seems to be working.
Rheumatology would not see me even when Endo referred me (I'm hypothyroid). The tests for autoimmune were neg, so they won't bother.