Ok so I have this question. Sometimes I feel like the top of my stomach "expands" I dont know how to describe it, but it kinda feels like heart burn, but at the same time it feels as if something is trying to come up right between my breast bone. I know that is where the opening of the stomach is, but it kinds hurts when it does that. Does anyone else have that? It only lasts for a couple of seconds, but still ... am wondering that that is?:confused: