Why when i smoke weed i feel like im having a heart attack? im only 18, ive been smoking weed and cigerettes for over a year now and i always thought it was really fun. but latley, after smoking weed , i feel terrible pain in my heart or in my chest and i feel pains shooting up my left arm and then my whole body. does somebody know what this is? is this a warning sign of a heart attack? or is it an anxiety attack? or is it just my brain messing with my head? can someone please answer this without calling me a bad person for smoking. i really need to know if it really is a sign of me having a heart attack.