You probably have some sort of sensitivity to the products you're eating. I have it too with particular foods (like bagels, who would have thought?). If over the counter antacids don't help, you can experiment with other similar products to see what doesn't cause your symptoms. And you can mention this to your doc the next time you go, just to make sure it isn't a symptom of anything serious. I share your frustration though--it's healthy, so why does it give me heartburn?