What Causes Recurring Abdominal Bloating,cramps And Pain?

hi, I have been having flare up of what seems to be ibs....can go for a while without having any issues then all of a sudden im feeling very bloated and food just goes straight through me,cant eat bread as that seems to make me worse (anything containing gluten) get very bad stomach cramps and keep needing the loo....can go up to ten times a day and its very draining. I get bouts of a pain in my lower abdonmen like a very bad cramp and it hurts to push and then I get constipated.ive had quite a few gastroenteritis flare ups also over a few years get a least one a year.