I have battled this mess for two years and have taken every ppi they make. Three weeks ago I went back on Nexium because I could not tolerate the heartburn. Well, it went away immediately and has not come back....BUT....the other symptoms that went almost completely away....the belching, chest pain, gas!!, and regurgitating came back after 2 weeks. What gives? Why would it be almost magical for two weeks and then...BAM....just return? I can't fathom it. Any thoughts would be sooo appreciated.