I get sudden , quick spasm with burning sensation that is only a second or two, in the center of my chest . It stops me in my tracks as it feels like what you may think the beginning of a heart attack might feel like , but, it s gone quickly. It s followed with a flush sensation. I have to get up and walk around and then I usually belch. I m on omeprazole and take other antacids , probiotics , Digestive enzymes etc. cardiologist says it s not cardiac . Gastro want to do an egd. It s been happening for several years and comes and goes . Right now it s back for several weeks along with GI discomfort that moves around the abdomen . Has anyone else described this ?