I am experiencing what you are going through. I was diagnosed with PMR nine months ago and was started out on 30 mg of Prednisone. At that dose I felt no pain , no depression and had so much energy I could work 15 hours a day non stop. Once I got down to 20 mg a day then the pain, depression, fatigue came back. The doctor did not know what to think and declined to give me methotrexate to help me. He just kept reducing the dose of prednisone until I got to seven mg a day. Pain and stiffness in my lower back, hips and bath legs. Can hardly move. Last week I was seen my a rheumatologist at the Mayo Clinic in Rochester who said he did not believe I had PMR. He wants me now over the course of 12 weeks to get off the prednisone. He thinks I may have fibromyalgia and wanted me to take Cymbalta which I declined. I have no generalized pain, only in my hips and legs. He will give me in a few days a cortisone injection in one hip plus I will have a nerve conduction test. Now I am confused as to what is causing the leg pain and stiffness so any ideas from others would be greatly appreciated.