Hello Doc About a week ago i smoked some cannibis and had a strange feling first i felt as if i was going to pass out and faint.then my heart started palpitating and my brain felt like if i wasnt getting enought oxygen. I got a horrible fealing and had to go to the hospital. My heart started hurting and had a tinglely fealing on my left arm. I have been smoking now for about two years now and that had never happened to me. At the er the performed ekg and some blood tesr but everything was fine. About a week later that was haunting me so i checked myself back into the er the performed chest xrays and ekg again as well as some blood test and again everything was fine. Now 3 months later i have that tinglely feaing in my arm and face no numbness am getting a little scared. i have had chest pains before my incident but everything very slightly. Also when stretch my chest kinda pops as if i was poping my back. I have been to the doc and he performed and ekg,echo as well as blood work and everything was good. Im just a little scared as i still have that tingly fealing. Can you please advise on this please.