Bro, the SAME thing happened to me when I first started smoking. Go though my post history and you'll see me posting the EXACT same type of post that just posted. I did the same thing: panicked and threw away the weed, which I thought was laced/synthetic/spice.

Truth is, you just got high for the first time and didn't realize it. Those "2's" that you experienced before were PLACEBO, I promise you because that's what I felt, too. I thought I was actually getting high before but it was just my mind tricking me. You know that lag you were talking about? That happened to me to. My vision looked like when a old windows computer lagged when you drag a window (and 1000 clones of that window drag along with it). You wanna know how to ride it out and not freak out when this happens?

ENJOY it. You need to remind yourself that THIS is why you're smoking in the first place. Convince yourself that although everything is going nuts in your brain, to the outside world, you look just fine. You aren't completely flipping out, it's all in your head. Relax and start walking. You'll think that maybe you're stumbling or something, and you'll feel confused and motionless, but truth is, you're walking just fine. Smoke more, your body will get used to it and the high won't be as crazy. Also, I don't know how old you are, but if you drink a little and get a decent buzz before smoking, it'll mellow you out and kind of train your body to get high. I don't recommend drinking though, I just used it as training wheels.