Maaan i know you guys have been there, and im sure there have been posts about this but i just feel like i need to share. Sometimes when i smoke alot to the neck i get way to high and something weird starts happening where i think im dying. My heart will often jump to racing speeds, my vision starts to sway (only sometimes) ,i get all dizz and i sorta see black all around my vision, I also heat up like a heater and sweat like pig and have to take my shirts off and lay flat and just take a breather. Every time this happens i swear i'm dying and i start to tell myself its the end and i silently give the world a good bye , but after 10 or 20 minutes i feel better and get up like nothing happened. (i hope this is normal, i said you've been there to make myself feel normal!)