Has anybody had a anxiety attack after smoking k2?

So me and my friend about 2 months ago had a little bit of k2 that we had bought the other night. I decided to smoke just one bowl of it with her. Then i was just a beginning smoker and my tolerance was fairly low. About 45 seconds after smoking I felt the usual high, droopy eyes, a little blurry vision, just the typical stuff. But then when me and my freind were getting out of the location we were smoking in, ( which was in some bushes in a park...very bad idea because we got caught by the cops there just 4 weeks later) I started to feel a litter weird. I was just having my usual ADD thoughts where I just randomly ramble in my head. Then a memory popped up in my head of when i was a kid, and for some reason it made me sad, and i could not stop thinking about it. In my head i just saw a picture of myself as a kid, and i felt like i was having little kid thoughts again. ME a little freaked out and said oh my god...and when i said it, it felt like i was saying it with my young voice again. It repeatedly was playing in my head. Me saying oh my god..and then oh my god.. like i was a kid or something. It felt like it was going for an hour but it was really only a few seconds. I was looking off into the bushes when this was all going on in my head. I had thought that i was just standing there for a while in front of the bush. But when i actually realized something weird was happening to me i looked at my friend and she was just a few steps ahead of me. We were walking at normal speed, it just felt like forever for some reason. My friend said with her usual voice. "Are you okay DOG? And that is what set me off. I started getting a little case of the SPINS! Have you ever stood up and spun for a long time? Well the feeling after you spin is the feeling I had right after she said that. Only a little slower. I started feeling a little sick and light headed. The childhood memorys were still going through my head. I felt like my soul was being sucked out of my body. I wouldn't say i was hallucinating. It was just that i had absolutely no control over what i was remembering. Ive heard you may not remeber everything that happens in your life, but it is still stored somewhere in your brain. I believe its true after this experience. I saw a lot of memories of my life starting from age 3 going in order to 5th grade. Really when childhood turns to teenager. While this was all going on i was trying to act normal in a public park. IMPOSSIBLE. My friend said i tried telling her what was wrong but i wasn't speaking right. She said it was like some kind of other language, or that i was speaking like a mentally challenged person. I sat down on a park bench. Listen to to this devil worshipers or just people who may be able to answer because this part right here has haunted me for a while. The bench I was on was a typical green metal bench. Under the bench was red brick. For some reason the red brick stood out ot me. It was extremely bright and the spinny feeling i had was getting worse. I tried to look away from the brick because i had an idea in my head that i was dying and it wouldnt stop repeating in my head. I thought the red brick was like a gateway to hell. The red stop sign on the street was standing out. Then there was this red mini cooper that went by. I told my friend. Oh my god i think im dying. I was getting very weak and naseous. I felt like there was a claw starting to scratch me a little bit. Gravity started getting stronger. I felt an enourmous amount of pressure on my body. It felt like something with sharp claws was scractching down my body repeatedly. I was very scared. Then i looked over to my left. I saw some gr and it looked very relaxing to lay in. I figured if i layed in it, it would make all this hell stuff go away. It seemed like it took a very long time for me to get up. I tried but i went to the water fountain first. Then for some reason i sat back down on the bench. Then i felt like I was going back into hell. I then Threw up. But i didnt have anything to throw up but acid in my stomach. It felt like there was a hand reaching up my throat as i was throwing up. My friend was just laying on the table tanning and calling people asking what was going on. Her friends told her that it would go away in like 15 minutes. Which felt like two weeks for me. I finished throwing up, then i finally was able to get up with that little bit of energy you get after you throw up. I layed in the gr and i felt like i was going to heaven. It was a much pleasurable feeling. I felt at ease then i was getting more weak. Until i fell asleep. I was worried that i was going to die. I told my friend to leave as if it was the last time we were going to see each other. I fell asleep. the k2 wore off and i was just laying in the gr at a park for about 30 minutes until I rode home took a nap. I was scarred for 2 weeks unable to sleep or be in a dark room. If you would like to hear more email me.