For a good week I have been having chest discomfort. I went to the hospital and they did a ekg, blood work, chest xray and all came back as clear. I now have a sore tummy as well as chest discomfort. Doctor said if it got worst to come back. Should I go back? Chest hasn't gotten worst, just uncomfortable. Wondering if it is heart burn, have been burping alot. tummy is sore and blunted?