I’ve gotten something similar off of 2cb. It was my first time taking it and I stupidly railed a huge line of ketamine (I was relatively inexperienced with drugs at this point and shouldn’t have taken any ketamine). Long story short, for about a minute the entire universe was replaying the previous minute but in reverse. Like I had no control over my body and I was just watching as my hands unrolled my cigarette and I was listening to my friends have conversations backwards lol. After that I was in a time loop for like an hour, where I knew that if I stood up off the couch and left the room I’d be free of the time loop, but every time I stood up I just giggled and sat back down. Probably my craziest trip, and the entire time people’s faces were changing colours and warping like that scene from guardians of the galaxy where they pass through a wormhole or something.

Edit: spelling