Ok so me and a couple buddies were smoking. First we split a blunt between the 4 of us then hit some different weed from a piece. So I was fine, extremely high, but fine. I stood up to go inside for a second, and sat down, was extremely high, but was OK. Then I got up to look inside for something, and that's when it started. 1. I was on an empty stomach. Hadn't eaten since the night before besides a little bit of cereal(not milk) and like 3 tater tots and it was about 2:00 PM when this happened. 2. There was nicotine from the blunt, so a nictonine/weed high I also had. 3. I stood up pretty quickly, I noticed it came when I stood up for the 2nd time, so hypotension maybe too. 4. I was tired as fuck. I've gotten about 5 hours of sleep per night or less for the past 4 nights. Ok, so at first it felt like I was caught in a moment. It was like the second before would keep replaying in my head, and I would forget what was going on, till I snapped out of it, then got back in as soon as I snapped out. Like a thought loop. As if I was waving into the previous moment/thought or whatever. Very hard to explain. I started walking around trying to get out of it, and I almost fainted. I started to black out, was walking into things, my friends came in and where like WTF is going on. I sat down and my heart rate and breathing seemed very fast and uncontrollable. It was like everything was going in waves, in that i was caught up in this rhythm in my head of a wave/rhythm thing, and I kept feeling like I was caught in a moment and would never escape it. I was shaking horribly. I was having shooting convulsions/pain in my arms and legs throughout the time. More like convulsions, as they didn't really hurt. I could barely stand. Im thinking it might have been a panic attack but more serious. Anyone have anything like this. I seriously think this has put me off weed forever - I may never do it again. Ive smoked several times before, even more amounts, and nothing like this has happened. Only positive experiences.