C.A.
I wholeheartedly second the Colic Ease brand gripe water. http://www.colicease.com. Very informative site that explains the difference between the brands out there and what each ingredient of this specific formulation does. I used this on my daughter for reflux pains, and later we discovered it works for adults too with nausea and indigestion. Best of all, it doesn't require refrigeration and is fairly pleasant tasting compared to some on the market.
Locally, you can buy it at the Family Health Market on Preston in Frisco.
I swear by this stuff. Good luck!