I have suffered from HA for years. I have also been diagnosed with GERD and IBS. For the last few weeks I have had increasingly worse heartburn and I am now taking prilosec twice daily. It helps but doesn't stop it. I have also been having lots of pain around my left shoulder blade. Today, on an empty stomach I was belching with this horrible taste in my mouth. I keep thinking it is the taste of blood and that I am bleeing internally and it must be a tumor or a bleeding ulcer. The only thing that is keeping me out of the ER is my hope that this is either just a bad taste from having an empty stomach or perhaps it is bleeding but it is just irratation from the GERD. Last week I had a complete blood work up and they found nothing wrong. I am really worried and could use some assurance.