THanks Dinydeek! I didn't know there were so many other ways to test for it! Is the muscle biopsy a big procedure? That is one stone that is unturned for me as of now, and I wonder to myself - do I have a dermato or polymyositis with a normal ck and adolase, do I Have mito dz- likely no, but I have been debating if I want to push for a biopsy, though I can't do anesthesia, as whatever I have is affected by epidurals and general anesthesia (respiratory distress etc).. .. if they could do it under local, I think I might consider it..