I shoveled snow for about an hour this morning. Afterwards, I went to Cracker Barrel and had an egg sandwich on sourdough bread. The sourdough bread tasted pretty strong and I have been burping the taste all day and I have a burning feeling in my stomach. Since then, I've had a piece of bread and a half of a baked potato. I have no appetite at all. I also just got over a terrible virus two days ago and threw up extensively. Could this at all be related to a heart attack?