I have suffered from this for now, 15 years maybe. I have almost constant pain in the upper abdomen area, right where I read/was told something about a flap that opens and closes, not sure. I also have burning around my upper chest and into my throat. I was told I had acid reflux ages ago, but no, nothing seems to help tried both prilosec and prilosec otc. tried gaviscon, tried something by boots called omeprazole 10 mg, but not much relief if any. I do tend to stress alot. which I am sure doesn't help. I do drink soda, (although alot less now than I used to) which also doesn't help. does this sound like classic Heartburn? reflux, or something else?