I have the same pain, almost as though I ran a marathon! I’m on 10 mg of prednisone, and trying to taper to 7.5 this week. This is an unbelievable condition because most people never heard of it (as I hadn’t) and it sounds like it’s a mental thing. Until you have this. Instant pain that debilitates, you just don’t understand it. I was playing golf one year ago and now I can’t walk 100 ft!