Aw man, i hate that "I gotta burp & it wont come out" feeling! It happens to me alot. It never makes me feel nauseas or too worried, but it is definitely on the annoying side! Usually, I never end up burping either, lol. But it does go away after a while. I think u should try laying on your stomach for a lil bit. You may have some trapped gas, and laying on your belly would help that some