This is not the place for serious medical advise. These symtoms could be serious go see a doctor. all the best
We would not be able to say that for sure. What I can say, is that you need to get yourself to a doctor. I do not know if you have heart trouble or if you are just having panic attacks, which can have the same symptoms as a heart attack. I say at 29 you are too young to mess around and not see a doctor, so start there and work your way through it.