I was just recently discharged from the hospital after testing negative for cardio issues. I am having a burning sensation in my strenum that only occurs during exertion. I had a stress test, nuclear photos, and the whole 9 yards of tests. During the stress test I told my doctor that the burning was increasing as we progressed. Yet they could find no signs of trouble. I have been out for 2 days and still experiencing same symptoms. They started me on Nexium but I am not seeing much of a change. I have cardio issues - 2 years ago I had heart cath and 2 stents were placed in my heart at that time. What should I do? I feel foolish checking into the er again.