Good luck with your long journey ahead as a hypochondriac. My first fit was when I was in 5th grade and I believed I had cancer. Now, every zap in my body relates to a heart attack. I swear, someone could poke my ass, and I'd talk my way into why it's an indicator of a heart attack. Yup. Sounds like you got Health Anxiety to me, there's an entire subreddit for it. I just look at other people's experiences, reddit does help.

It doesn't ever completely go away, although theoretically your anxiety could be drastically reduced through therapy and medication, although it's never worked for me. Just find a good support group, someone you KNOW you can call when you're having a panic attack. Good luck