What Can I Do About Indigestion?!

I don't know of this ENO but many antacids are designed to gurantee repeat business, so don't rely on them to much. It's probably a food intolerance, funny you mention cereal, most are corn or wheat based, they are in the top most common intolerances. Keep a journal of what your eating, how your feeling and your bowel movements along with any other symptoms, will make figuring it out a lot easier. Rotate your diet, try two weeks with out foods that fall into the same food family, see if this relieves it at all. If you drink soda or sports drinks, stop. And try getting in a walk everyday, it will help your digestion to some degree. ( mechanically it helps the food move through your digestive tract).