Its do with my heart rate again and it going up and up til I get a heart attack is my number 1 health anxiety fear. And I've developed a lot of irrational beliefs on how it could do that, particularly this one.
I'm afraid of doing "bad things" or having negative feelings like getting angry because I believe my anxiety will punish me by making my heart rate go up. It also makes me look at criminals in jail and make me think how they don't have this kind of fear. Obviously they don't have anxiety like me but it freaks me out!
Sorry if this made zero sense but I tried to explain the best I could.