I plan on going to a therapist tomorrow and getting doctors appointment in a couple of days to make sure everything is 100%. I'm one of those people that get worked up and padantic about something real quick. I mean I've never had a health scare ever and when I saw the 160, it honestly scared the **** out of me and good old dr Google made it even worse unfortunately.
First of all, everyone dies sometime, so if you drop dead and die quickly, well, there's no better way to go. But that isn't going to happen to you. Anxious people way too often believe they're having heart problems when they aren't, though it's not a bad idea for someone with actual symptoms to get them checked out. If you look at the archives on this forum you'll see a ton of people, mostly young people with very low probabilities of having heart problems, believing they have them. What you need to do is, given you're having a problem adapting to stress, and life will always be stressful if you focus on the stress, is look into seeing a therapist who specializes in anxiety treatment and learn how you're thinking and how to change it and some relaxation techniques. And don't stop the exercise.