I have had the same thing happen to me. The problem is, it can be harmful later on in life. If your anxiety continues, it really could cause you to have heart problems as you get older. Anxiety and anger can both damage your heart. It puts stress on your heart to be angry, and it also puts stress on your heart with you are anxious, or when you let things get to you. I worry all the time and I know it's not good for me, but I have got better lately. You do need to tell yourself to calm down. I'm not going to tell you to go see a Doctor because I never have, but it wouldn't be a bad idea if you could. It costs a lot of money (without insurance) to get your heart examined though so be aware. I think you're OK right now, but just try to calm yourself down when you get in these situations, it can definitely help.