I too seem to be sore most of the time from all my joints, shoulders, knees, elbows and hips. My lower to middle back has no strength. I to have been wondering if its from my meds as many warnings indicate joint pain. My GI is informed and is hoping that my symptoms of pain reduce by my next appt on the 10th. His first thought for my back pain was that I was strained during my BM's, but I know better than that. Well see. Good luck with your pain and hopefully it subsides.