I have taken Prilosec for indigestion and IBS for the last year, it helps, but seems to wear off before I am suppose to take it again. I use to get pains in my upper chest after eating and a friend in med school told me I may have an acid problem where it leaks into my lungs and burns them. I cant recall the name of the condition, but the Prilosec seemed to stave off the pain, I started using the Prilosec shortly after she told me. I am 2 weeks from the end of this med cycle and I got food poisoning from some bad food the other day and after that had passed, the upper chest pain persisted. It is now two days since the food poisoning has worn off and I still have the upper chest pain. It is a dull pain that doesn't seem to spread, but is constant, and only seems to lighten after I have had water or ice tea. When I get overly warm, the pain is worse and makes me nauseous. Any idea what this could be?