I was put on 30mg Pred on July 18, my diagnosis date, and didn't feel a thing...I was going to the bathroom too much for it to stay in me. On July 24 doc bumped it up to 40mg. Still no effect because of it not staying in my system. July 31 doc put me on codeine and BOOM! August 1, I felt jittery, sweating, you name it. I know the codeine was helping because he put me on it to stop the diaherrea. He then bumped pred back to 30mg. I can now say with taking the codeine and all I am jittery at times, wake up sweating, nauseaus when going to the restroom, etc. So I would bet it is the pred, but no doc here.