Hello Doc, Okay so, I smoked weed 3 months ago for a period of 3 weeks (never before that, and never after that).. During my last time, I smoked too much of it, and within 5 minutes after smoking it, I went into a intense panic attack/anxiety attack. I started feeling weird, I felt like I was gonna die, I could barely speak, and my heart felt like it was beating extremely fast and it was gonna explode. I tried my best to stay calm, but the feeling was horrible. I sat in one place for almost 2 hours, and then I finally attempted to walk to the bathroom and wash my face, so I could come back to reality. Finally after like 3 hours, I could walk and function. But speaking was difficult, because whenever I tried to speak I used to run out of breath. My left hand and feet used to feel numb and tingly and my chest tight. I could finally speak properly(without running out of breath) after like 2 days, but my left hand and left feet still kept feeling tingly and my chest tight for a period of 5-6 days until it slowly vanished. Now its been almost 3 months since that happened, and I am functioning perfectly normal. But still, from time to time, I keep getting anxious/nervous for no reason and my left hand and feet start getting tingly and cold, and my chest area feels tight. Okay so my question now is, could it be that I had a heart attack at that time? . I am worrying that now every time my chest feels tight and my hands and feet tingly, I am having small heart attacks. I am really scared. I am 21 now, and I had my heart checked almost 8 years ago because I used to have irregular rhythms in my heart beats/ heart palpitations and I was worrying about it. But after all the tests, they said my heart was perfectly normal and said it was just a anxiety problem. So whats happening with me now? Please help. Thank you