I have a dull, throbbing pain in my chest. It seems to be about an inch up and an inch to the right of my sternum. It occurs every five, seven or ten seconds average. I do have some GERD symptoms which I m taking Prevacid and Zantac 150 for, which was helping me, for the most part. I ve also been diagnosed with gallstones, which seem to have other symptoms I m familiar with.