Eternal Idol wrote:
following the reaper wrote:
Have you ever had your heart rate rapidly increase, your whole body go numb and your mouth go so dry you couldnt speak properly, all from just one joint and one bong?
Worst saturday night ever

It sounds like you got some shit laced with Cocaine.
Yeah...
It is very important that you have a good state of mind smoking weed, but I usually just fuckin' forget about all when I smoke it. Or think deeply and try to solve. Weed helps some people with their lifes. It makes one realize a lot of things that one really would not think about when in normal state of mind.
Anxiety can grow very fast and take over your entire body and affect your nerves system and soon enough it will be a situation, as you described. As Dago explained, the number hits you go for, how much you inhale, and such all has effects. Always have a bottle of water with you, plus gum and the music that you really haven't figured very well when not high. You have to understand your capacity for it, and try to figure it out the first few times. It will differ, you will able to do much more (Act normal), as you smoke more and get use to it, that is if you want to, of course.
I have been smoking for 4-years now, and I have always kept a balance not to fuck too much on my regular boring fuckin' life. The place you get high is also very important in your situation. A lake, or a cynic view would be much better.
If you feel your heart is hurting, it's not your heart, it's the bloody chest and the area getting warm. Nothing to worry about.
P.S: Stay away from Mushroom and Acid, with your situation!