Hi a few days ago, I was getting ready to leave and I was super thirsty. I grabbed a room temp soda. And I took a big gulp. All of a sudden I get this severe stabbing pain in my heart. I had to sit down and couldn t talk. It only lasted for about a minute. And then I was dizzy. But it shortly went away. I went on a 2 hour road trip and stayed in a hotel. I ate out all weekend, drank soda, and coffee. (I have always been a big coffee drinker) But every once in a while I get dull chest pain, right under my throat and I am starting to worry.