food allergies

So growing up I lived in a house full of food allergies. None of us were picky eaters really so that never was a problem. I ended up finding out I had some possible sugar problems, not strong enough to be considered hypoglycemic or diabetic. I changed my diet, lost some weight once I moved out. One thing that has not changed though over the last couple years is my stomach problems. I was diagnosed with IBS I think 4 years ago. I stopped eating red meat, felt a lot better. Slowly started eating red meat again, stomach was fine. when I stopped eating red meat I cut down pork. Altogether ugh it's not red meat still gave me problems. Well tonight I decided I'm cutting out pork. My poor stomach is a mess. Since I've been off bc, my body is just yelling at me quietly. Ugh