After abdominal surgery adhesions are usually the norm. Adhesions are scar tissue binding abdominal stuff together. Mine started with my appendix rupture in 2015. This has lead me to all of your issues. Don’t eat raw veggies or fatty foods. Chicken and fish are the best. Beef can be problematic but hamburger meat is OK.
Adhesions can be removed with a tedious surgery for the surgeon. They don’t want to do it as the adhesions will only return after a few months.