I'm currently 19, on my 17th birthday two friends and myself we're going to smoke some weed. I was sitting down and we we're smoking out of a water bottle. (yeah shitty i know.) Anyways we were hitting it until when it came my turn i started to hit it and the smoke got thick but it also turned yellow. I ended up clearing it and a couple minutes later thats when it all turned bad. I stood up and in about 3 seconds i became very confused. I started seeing everything in multiple vision. Its hard to explain but When i was staring at my friend i saw him a whole bunch and he kept getting smaller and smaller until i focused on the smallest image or whatever at him. Once i like followed the trail and focused on where he was really tiny he like zoomed in and got really big. But everything was doing this. It scared me and i started having a panic attack. I tried to calm down but nothing works. I took a walk outside with my vision doing this and i sat on his porch and couldn't handle it. My chest started to feel bad and i thought i was having a heart attack and ended up going to the hospital. I've smoked a few times since then and its all been fine i get a little anxiety just because im scared thats going to happen again. Has anyone had this experience ? It is hard to explain but if you understand i would like some comfort.