The most definitive result I had was that the suspected PMR responded well to Prednisone. Even after being diagnosed there is still a question as to if the diagnosis is indeed correct. There are other possibilities. I also had difficulty getting a diagnosis out of the medical community. In retrospect when I first became afflicted by the intense pain I should have gone to the emergency room and treated it like an emergency. The blood tests for inflammation helped convince my doctor to try the Prednisone. Good luck to you.