I have a sever pain just below my sternum that has been going on for a few weeks now. It feels like indigestion, but the prilosec I took does not seem to help. When I burp it does feel better though. I am thinking maybe an ulcer? Also, over the past year, when I have been consistently subjected to very hot weather, I have gotten sever edema of the feet and ankles. They have done lots of bloodwork and it appears to be metabolic in nature (not thyroid, not liver.. etc) Would a stomach ulcer cause metabolic issues that would cause edema?