So.. yesterday I went out all day with my fiance and his friends. At night we where on our way to pick up a friend and one of the guys rolled a joint that contained sintetic weed (where I am from sintetic is legal, not marihuana) And I didn't know the kind of trip that I was gonna be in because no one explained it to me nor the consequences (a bad trip).Well... I got a bad trip...It was so strong and so confusing I was begging for it to stop and no one in the car could hear what I was saying because I thought I was screaming out loud but I wasn't.... all my words where in my mind. I saw everything and everyone moving fast forward and they looked like cartoons.. it was night.. I was so damn scared I thought I was gonna die, that I was never coming out of that feeling.. I was next to my fiance and I remember telling him to make it stop and he said "you gotta let it pass because I don't know how to make it better" and that's when I lost it. I kept saying "I'm not okay, please help me" "god help me please"...."kill me! I don't want this! Kill me!" I begged.. I cried... I tried my best.. I started having a panic attack and no one could help because they couldn't hear my thoughts when I thought they could.. I don't know if this is the correct place to post this.. but I needed to talk this out and also see if anyone has ever been in this situation..