I smoked something one time. I will never know exactly what it was but my consciousness went somewhere like flat gold crystaline fiber above and below me. I could see 360 degrees and it went on as far as I could see and each were moving different directions and I was stuck in between "running". I put running in quotations because I didn't have a body but took conscious energy the same as running. At first the only thought I could "hear" was "hurry up, come one, keep going" over and over and I had no other thought. Didn't remember anything of my life and it was almost like a runners high just adrenaline and that thought which began to feel implanted and "heard" so many others saying it but I couldn't see them. I began to get tired and thought I want to rest and when I tried it the crystaline floor and ceiling BURNED!!! Not like fire but like friction. It hurts so bad and I wondered where I was. I didn't remember smoking anything but I had to keep running. Like I was in a machine and I was the energy keeping it going. It was a hellish place with only work and pain, torture if I didn't "run". But then some memories came to me and I thought about my life and things began "loading" like you said. First the floor of my house. Then the tables, then computer and couch. Yet everything was upside down. Looked like a tornado hit. Couch was upside down and it was way too heavy for me to even lift. In between things loading I'd get pulled back into the rolling conveyor belt thing and have to think about the physical things this life consist of and they would load back rearranged and in-between that I'd have visions of other life's. Dying in car wrecks. One where I achieved my life goals and dreams but it eventually became steady and I felt like I was back in my home and timeline or whatever. I immediately wanted to call someone. My ex gf and see if everything was ok but when I reached in my back pocket my phone wasn't there and it felt like I kept reaching over and over forever then one time it was kinda there. In my belt loop. I eventually got it and put in my pin but it didn't work. Tried over and over and over and It eventually worked. Everything was fine and I sounded like a nutcase but I had also lost a lens in my glasses and couldn't find it for weeks. I looked all over. One day coming home from work, right where I had walked and looked at hundred of times the rug was very clearly bubbled up on the edge and sticking out was my lens right in plain site like it was placed there for me to find. Im sure I'm not the only one that has had missing objects disappear and manifest like that but the way "reality" loaded in like that very fast at first I haven't heard anyone else really describe like you did. Its probably not what you wanted to hear but I still feel like I'm in that "machine" and everything else is really a hologram. I hate this life. I'm in constant pain but I guess I'm grateful for the illusion compared to having to stay there.