What Causes Pain Starting From Bottom Of Stomach To Throat?

I have a pain that starts slowly in the bottom of my stomach and gradually moves up toward by throat. The pain is severe and hurts worse in the middle of my check. It also feels like my throat and jaw are tightening . Pain usually builds to an extreme then gradually goes away. I have had this for quite a while. Recently the pain lasted about an hour, the longest time yet. Pain was so bad I left work and went to dr.