I can totally sympathize with you. I had a total colectomy for colon inertia 4 months ago, and I have the same problem. I see my surgeon on Thursday. about 2 hours after I eat, I get that terrible pressure/pain and I just can't go. I drink grape or prune juice after dinner and finally go, but I'll go several times with diarrhea all evening. the pain is horrible, especially before I can go. Suppositories help some, but are very painful. I know I have pelvic floor problems, so I'm assuming that's the reason I have this trouble.
Tracy, thanks for the advice about nupercainal. I'll definitely try it!