What did I Smoke?

*PREFACE*
This is my first (and likely one of few) posts on this forum. I've been looking for an answer to this question and I haven't found a good answer for this. So, apologies in advance if this is in the wrong section, or whatever the case may be. If there are any discrepancies, I'll seek to remedy them.
There will also be a tl;dr for the sake of answering my question if minimal context is required. I just thought I would go through step by step for those who might care.
It was one of the last days of finals at my college, and some people that I had talked to over the semester had gotten together to do the online final together. After we finished one guy that I knew pretty well offered to smoke a few of us out as a sort of farewell to the semester. We go to his place, and I take the last hit, out of politeness for my host and the lady that went before me. However I believe that having the host go first is more so for confirmation that nothing fishy is going on than anything else. Then it's my turn: and I take a moderate hit: nothing legendary, nor to scoff at. But I feel it hit INSTANTLY: it felt like I got hit by a wave. I didn't think that it was laced at first, just that I took a stronger hit than initially anticipated. I went outside to get some fresh air and it kept getting worse; I could feel everything the sensation of the hairs on my legs brushing the skin was the same as a punch in the gut. I couldn't see straight. Colors I haven't see before or since, shapes moving around and interacting with each other in ways that made my brain hurt. I couldn't move right, I had no balance, and I could not focus on anything. I was completely aware of my surroundings, but I couldn't muster my focus to interact with anyone or anything. I initially sat down in the bathroom with my head in a dirty laundry hamper, and just sat there trying to focus on the conversation that my fellow classmates were having with what seemed like no difficulty. I asked them how they were doing, and even the girl who had never smoked with this man before said it just felt like regular weed. I went on like this for around an hour, intermittently vomiting into the toilet from a mix of dizziness and over stimulation. Meanwhile, they were both playing Battlefront with little issue, which deepened my confusion even more. After about three hours more the girl had to go to work, none the worse for wear, and the host had to go take another final. It was about half an hour after this that I made my way to a couch and fell asleep for about forty five minutes before he drove me back to my car. I sat in my car, dazed and still dizzy for about half an hour before I was able to drive home, still not in the best of shape. I got home and slept for a while, only to wake up still feeling it a little bit.
tl;dr
Smoked with some classmates, immediately felt like I took the strongest hit of my life. Got worse, started feeling hypersensitive to my surroundings and own body, and saw colors and shapes. Both of my friends were perfectly fine, I was stuck over a toilet vomiting intermittently for an hour. Then went to laying in a hamper full of a college dude's dirty laundry for three hours, dazed, ridiculously dizzy, and trapped in my own body.

So, now that that's out of the way. I want to know what it was. I saw him grind it and looked at the strain before doing anything (as it behooves oneself to do) and it all looked normal. It looked like a sativa with a nice tric structure in a whiteish amber tone and the bud was a moderate green with a darker bits throughout; nothing out of the ordinary. It was sticky when squeezed and had an almost fruity scent to it.
I have been wondering since that night what it could have been. Why were my friends perfectly fine after an hour? Why were they not as wreaked as me? Why was it so potent for upwards of FIVE hours? Why did it linger for nearly a day?
Any help you more experienced folks can give is greatly appreciated.

 

Shit, I'll be on the lookout next time. Thanks a bunch!