I just had my first high-dose trip of 4.5 grams. Needless to say I was feeling it within 20 minutes and gone by 30. There wasn't even a chance to enjoy the body high or feel my ego slipping away.
I was tripping with a friend who took the same dose, but he puked it out. He started having an identity crisis and loops of nausea. My visuals were intense, everything just "looked" different even though I had no idea what exactly was different. It was confusing. I kept getting caught in the loop and wanted out to fix whatever mess we somehow made. I thought my friend had puked everywhere and we were in trouble. It didn't help that his brother came down and started video-recording us. I remember exploring my hair and mouth with my fingers and they felt incredibly different. My mouth felt like a massive cave.
Eventually, after losing my ego completely, "I" consciously "woke up" and entered a new phase in my life. I felt like everyone was a byproduct of my consciousness. At one point I thought I was my friend, because he kept repeating his name. But I concluded my brain was thinking everyone up, like a dream. During this time (t+2h) "I" was basically completely uninhibited and delusional as hell. At one point I yelled, gritted my teeth, and felt the last bit of sanity I had leave me. Sometime later, I peed all over myself....why?... because I could. Because I was now in piss-soaked shorts, I ended up stripping and walking around my friend's house naked, with his two older siblings (22 and 26) still around. I didn't feel bad at all, after all, I thought they weren't other people but in fact me. Plus I was crying a lot, right in front of my friend. A bit later I ate a little beetle that was crawling on the counter.
Normally I'm a very calm and collected, shy nerd. This was very unusual behavior. Shrooms take the crown in my book for altering behavior, beating even alcohol. Theres a big difference though, you remember the trip, mostly.
Around 5AM - 5 hours later - I finally came out of the 'delusion'. It was about time too, because I thought I had left my old life behind and I wanted it back. I thought I would never see my girlfriend again. I was glad when I realized everyone was not me, and that they were in fact a little worried for me.
That was definately a side of me they've never seen.
Overall, it was really intense and interesting, but not exactly spiritual or profound. I'll stick to tripping alone, thank you.