Linda, Laurie is right; your health issues are serious, and need to be taken seriously by the medical team at wherever you go for treatment. I'm wondering if all the digestive issues aren't due to some other cause, and it's coincidental to the tram flap- sounds a lot like Irritable Bowel Syndrome (IBS), actually. Has anyone ever suggested that to you? If not, you might ask them about it. What does your PCP say about all of this, by the way? If you're getting the brush-off - it's time for a new PCP.
You're in a terrible place right now, on so many levels. But if you could relieve your pain, I think everything would look better, for sure. My suggestion would be to hound your PCP, and if (s)he can't help, ask for a referral to a gastrointestinal specialist. I know these GI problems can be very tough to solve, but please don't give up; try to keep moving forward towards a solution. It's tough to have to always advocate for yourself, with no help, I know... But the choice is to stay in the situation you're in, which is not acceptable.
Does your cancer center, or anywhere near, have a survivorship initiative or survivorship clinic? You might ask about that. They're springing up all over the place, and they're specifically for people dealing with post-cancer issues.
Good luck - I really hope things improve for you soon, Linda- PJH