I have real bad acid reflux belching hard burn since 2011 and I have been on Nexium every since. I have tried other medicine, but nothing else helps only nexium. Right now it is very bad and I do fell nausea. I have all kinds of test done, cat scan, gallbladder necular test. Don't know what to do. I have been told that my opening into my stomach is open too much or does not close. what can I do. Where is a good doctor located so I can vist and have a referral.