Endocrinologists specialize in autoimmune thyroid disease and type diabetes mellitus. Ask your doctor to recommend what other types of doctors, physicians, medical specialists, or other medical professionals should be part of the team for your medical issues. I looked into this kind of doctor for myself, but unfortunately most do not take insurance. I was diagnosed with Graves Disease, an autoimmune thyroid condition, in my second year of medical school, and I now specialize in helping people around the world reverse their symptoms. A type of doctor who might be helpful in relieving some of your symptoms, such as muscle spasms and backaches.
Another aspect of autoimmunity that is cause for alarm besides the skyrocketing rates of it is that autoimmune diseases often go undiagnosed for years. If you see a specialist, make sure you have a supportive main doctor to help you.
They need to spend more time with their patients than most insurance plans allow.