hello there. I had a severe burning sensation underneath my breasts, up my esophagus across my jaw. The pain in my rids was very severe and the pressure made my throw up a little. The pressure would not let up and the pain was awful. My husband called 911 and the doctor there could not find anything in my blood of heart ultrasound. They gave me some zantac and some antacid and morphing for the pain. I went home and I felt better but I still have a dull pain in my chest, but I do feel a lot better. I have been reading that I probably just had a bad acid reflux attack. I hope it was that rather than a heart attack. Could I get your opinion please and thank you.