Most of the time if you smoke laced weed it'll be a scenerio when your going over a friends house and they already got somethin rolled up. If you just ask the dealer for some regular weed and not all that fire and dro and shit (if your that paranoid) it wont be laced. If it smelled like regular weed and all that then you might've just had a panic attack. Dont under-estimate weed. If you have never been high in the sky before then when some one tells you "this is some really good shit" then you should take your time when you smoke it lol. It sounds to me like you just had a panic attack thats all. If you look in my post history you'll find the story I posted when I thought my weed was laced. If you read it and you experienced some of the same things as me then you know you were ok. I doubt your high was more intense than mines was considering that I'm only 15 and I'm underweight lol, I took a pretty big dose that night for a scrawny guy.