What to do?

Hello all, I am 23 years old and I feel like I have HA, I’m not sure if I do or not but strongly think I do. I am on vacation right now and the left side of my chest has been hurting feeling weird ect. The first thing I do is hop on Google and then think of the worst possible thing that correlates with the symptoms I have. I haven’t been able to enjoy anything on my vacation because I’ve been worrying that I am going to die of a heart attack.. I’ve talked to my doctor about anxiety and they haven’t done anything about it.. I just want to be home so I can actually get prescribed something to make me feel normal again. I don’t remember the last time I woke up and actually felt “normal”. It’s so annoying.