If you eat cooked veg, this is a likely outcome. It took me a long time to discover that all veg or fruit which, when cooked, have a sweet taste, cause me to bloat gassily. When I dropped them from my diet altogether for a while, then slowly reintroduced as raw only, guess what? No reaction at all. These are called FODMAPS and include, among many others: apples (in pies etc), carrot, corn, onion, yam, and more. I'd suggest you stop all cooked veg for a while and let your system relax and recuperate, then start having a tiny bit of only one cooked veg at a time with your meal [this means no grains either]. You will very quickly see what causes the reaction. I wd also have loads of trouble with cooked cabbage. Now I finely chop it, salt it a little and wait til the excess liquid seeps out, then just eat it raw with olive oil and chopped cilantro and ground pepper, or perhaps some other raw salad veg mixed together with it. Guess what? NO reactions at all. But if I take just 2 teaspoons of any of a long list of FODMAP foods I discovered bother me, boom, all the phenomena return. On this site is a great set of lists that you can copypaste, and then make notes for yourself on how you react. No gas, no burps - gone forever just by watching what you eat. It's the result of sugars accruing in the system that can't be handled by the body. http://www.cassandraforsythe.com/blog/Complete+FODMAP+List+For+a+Happy+Gut/