Unfortunately, I have to agree with Jaybay. Another avenue you might consider in addition to the surgeon would be a Pain Management doctor who treats abdominal pain. Not always easy to find either. Either way, good luck.
I can pretty much guarantee that you have bowel adhesions (scar tissue) causing intestinal obstruction as a result of the surgery and the infection. Same thing happened to me. The only treatment is surgery to release the scar tissue that is binding up your intestines. The hardest thing is finding a surgeon willing to do the work because scar tissue generally doesn't show up on imaging studies. A full bowel obstruction might show up, but not the scar tissue alone. You can either start with a gastroenterologist or a general surgeon, and be sure to bring copies of your medical records regarding the hysterectomy and subsequent surgeries. I wish you the best of luck in finding a surgeon to do this work It's not easy.