When you say pain all over, what do you mean? I had PMR (undiagnosed) starting about 7 months before I started having symptoms of temporal arteritis. The PMR caused pain and stiffness in my shoulders, neck, and one knee. I also had some brain fog from the PMR. A lot of people with temporal arteritis also have PMR. My temporal arteritis symptoms were quite a bit different from yours. I had several episodes of temporary vision loss in one eye, night sweats, low grade fever, pain in my face and scalp, and a lot of fatigue in my jaw muscles. I never had headaches, but I think the majority of people with temporal arteritis do have very painful headaches. Has the prednisone helped you to feel better, or has it not had enough time yet to work?