I rarely get pain that bad,but I do on occasion,and some times feel very,very sick.I've never used Pred.Since dx with Proctitis over 6yrs ago,I have used Asacol Supps.,and they suit me fine up to now.If the pred isn't doing its job for you,then I would see your Med.team and ask about a change.This is an ongoing curse,but if you get suitable treatment,it's liveable with....Pain in the bum though eh ? (sorry,I'm not making fun of you,)