When I was on Entocort I started getting back pain after the first week, I brushed it off tho, it wasn't too bad, it went away for the most part after a few weeks but now and then I still got pain in my back every few weeks here and there. If your concerned about having a kidney stone ask your doc to run some tests (I never had one so i'm not sure what they do, but I heard they ain't fun) Good luck :)
Male DX with CD May 2006 @ age 22, Colonoscopy and SBT
Taking Prednisone 10mg (tapering), Imuran 75mg (eventually 150mg I was told), Atenolol 25mg for fast heartbeat (thanks Pred!)
Have used Pentasa, Entocort in the past
Have a safe and happy holiday everyone!