Im 16 years old, I was smoking weed yes i know my mistake but i was doing quite a bit before but all of the sudden i could feel my heart moving around and it felt warm and i though i was going to die. I couldn't tell my parents they would kill me. Well i quit after that day but from the withdrawal I wouldn't be able to sleep at night and when I did I would wake up usually after a nightmare to find my heart beating really fast and Id be up for a few more hours shaking uncontrollably. It's been about 5 months since that and 2 weeks ago I tried this kind of LSD called 25in-bome. I know I' m stupid I'm never doing anything again, but I did it and my heart did the same thing and it lasted for days... then I did it again last week cuz I liked the visuals :( but it happened again and it hasnt stopped. As I'm typing I feel my heart rolling around or something...it's warm and I had to deal with it all day school and I can't tell my parents cause they'll know I did something. It gets worse when I get anxious and I don't know what to do. Is there something wrong with my heart? The best way to describe it is.. it's like not part of my body I can only focus on it out of everything it feels like it's moving around and its a burning sensation and I think I'm having a heart attack. Please help.