I get heart burn and stomach upset really bad! It's just from the anxiety. When you start feeling anxious or emotional, your stomach churns and causes the acid to upset. This is normal.
My doctor told me to use an antacid with the ingredient simethicone in it. He said the best to use is an antacid / antigas liquid. It works better than just antacid and the liquid works better than the chewables because it coats the stomach.
Hope that helps!