Hi due to have one tomorrow, about to start colon Klean stuff, I am petrified, I know some people find it horrendous and others ok, what I am concerned about it watching them do it, the hospital consultant is convinced I have diverticula disease and he is probably right, I have IBS and all my symptoms match and after taking colpermin and fybogel the pain has virtually gone, so a flare up we think, but a tiny part of me knows it may be something more sinister and that is what is frightening me more than the process, you always hear that with cancer you have no pain until it is well advanced and sometimes too late. I want to have the procedure but when tomorrow comes I am worried I will be a big wimp, cry or even worse be sick. Anyone had one and lived to tell the tale.