most doctors would probably tell you that you have acid reflux.
I used to have the same problem.... my doctor gave me some kind of liquid medicine to drink that supposedly coats the stomach... but I never tried it.
oops.
I think I cured it myself by following the basic common-sense food combining techniques.
my meals are very simple. I eat in a certain order so that the food digests properly. and I chew
slowwwly...which also helps.
good luck.