i suffer from crippling cardiophobia but luckily i’m seeking help for it soon. however most other people i’ve seen have also developed it due to drug misuse. my personal experience was with weed but i’ve seen others develop it due to experiences with caffeine and even cocaine. is this just the usual way it develops? like the chemicals alter the brain/perception of the event in some way to make it develop into a phobia when the first panic attack happens?