I posted this on the IBS board , but got no responce. At times when I burp, it smells really bad-like rotten eggs, it grosses me out so bad I almost get sick to my stomach. I have every tooth paste, tooth brush that is made and huge bottles of Listerine so I am a clean mouth freak-- you can see how this demon burp just makes me sick. I was diag. with GERD a few years back, all the meds, make my IBS diarreah worse, so I try to do all the things to avoid GERD on my own , but these burps are scaring me now, thinking it might be cancer. In my mind I think this is waht cancer would smell like, someone please help!!