Feel better, I am praying for you right now! Listen to this http://www.youtube.com/watch?v=Fdi54PBPYC8
I am terribly sorry to hear you are suffering. I too have problems with acid reflux. I don't have the vomiting or hiatal hernia (from what you described about "stomach moving up into chest, that's what it sounds like), but I do get a pressure or heaviness underneath my breast bone (sternum), and the occasional gas like pain in my ribs off of my breast bone. My stomach growls a lot. I think GERD is giving me poor digestion.
I do believe in god, and will pray for you. God always cares about you. Never doubt this. I hope you feel better soon.