The cannabis is not 'causing' the problem.
It is a warning sign.
If you pass out or get vertigo (the 'spins') after smoking cannabis, you should go see a doctor right away, and have your blood sugar and pressure checked. You may have a REAL problem, not related to cannabis use.
psteve Reviewed by psteve on . Fainting - damaging / dangerous? Hi, since childhood, confronted with some situations (taking an injection, withdrawal, etc), I start to feel (not always) dizzy, weak and pale as if I was about to faint. But there was two times in my life when I actually fainted for seconds:the first one was watching a movie dealing with health related issues (health and the human body was always a stressful subject to me) and I started to feel hot and so uncomfortable that I had to leave the cinema and I fainted right there at the exit. Rating: 5