Stringplayer, yes I have this too!!! I've been to the ER twice now. The only bad thing (for me, anyway) is that is usually goes away while I'm waiting, so by the time I see a doctor I feel pretty silly telling him that I have no symptoms... but it was REALLY bad before, honest!! :)
I have to 3rd what Bill and Denise said... I was given Gaviscon at the ER and it seems to do the trick, but only while I'm having the intense pain, which comes and goes. I still take 40mg Nexium daily.
I personally use and like the liquid, but other users like the tablets, too. Whatever works for you.
I really hope that it clears up for you! This pain is horrible, I understand you completely.