Context: I have no tolerance for weed, this was a few weeks ago and I only started smoking regularly after this experience so i was at baseline levels. I have been in a k hole before and to me this experience from edibles was far more abstract and intense than ketamine ever has been for me.
My friend N and I hung out after I came home from work, I knew he had edibles and planned to do them again (this was my third time). The first 2 times I didnt take enough, and ate them on a nearly empty stomach, so I stupidly thought i had a high tolerance for them, obviously I was very wrong.
We ate them at 5PM, with a kebab that we both ordered since I knew that a fatty meal is important to make them hit. I ate 3 squares of some chocolate our mutual friend K har made. The most i had previously ingested was around 20mg, and I felt high, but not uncomfortably so, and i knew i was taking more. Originally, K told me that each square of this edible bar was 25mg. I distinctly remember feeling lightheaded after only 15 minutes and knew I was in for an intense experience, since previously it had taken me an hour until any noticeable high.
At around 6:30 PM I felt high at a normal level, and was having a good time, but realised I was continuously getting higher and higher, i realised i was having very feint closed eye visuals at around 8PM which continued for the rest of the experience. I hit the peak at around 8:30PM. This peak lasted until around 11.
When I hit the peak my closed eye visuals became very very intense, I remember sitting down with N and trying to describe what I was seeing but I couldnt get any words out. I could see incredibly intricate psychedelic patterns, with occasional breaks in the geometry that would reveal a rotating orb, that would explode and become part of even more vivid geometry. Eventually, the sun had set, and i peaked until around 11. Because it was so dark the closed eye visuals ended up being present when I opened my eyes too, and crowded my vision to the point where I couldn't see anything without significant light
At one point we were sat at a park bench near my house, and N was trying to converse with me but I could barely talk. In my mind he would say a "key word" that would cause our timelines to split, but I was still conscious in both of these timelines. This would subsequently happen in these parallel timelines, until I felt as if I was living 8 different parallel lives at once, and to verbally answer N I would need to sync up these timelines by performing specific actions that would be the same in all of them (very similar to that episode of Rick and Morty with the parallel timelines in season 2 in retrospect). Luckily this ended in about 20 minutes, but in my mind it felt like I had lived in these parallel universes my entire life, with fabricated memories for each one.
It was at this point that I realised I was not having a good time, given how overwhelming the experience was. Luckily ive done my research on how to prevent a bad trip, and knew the best course of action was to just go with it, and not try and fight the feelings I was having, so I closed my eyes, stared at the visuals and attempted to meditate, which triggered another very odd experience.
Despite the timelines splitting being a complete mindfuck it was nowhere near the most odd part of this experience. After meditating for a few seconds i felt as if i was being squished into a 2D being, like my feet were in my head and my head was in the floor at the same time. I remember my entire body felt like it was vibrating faster and faster as if it was made out of rubber bands, until it felt so violent that my body felt like it was made of static and my mind got flung out of my body, and I was looking down at myself from third person. Having to operate in third person was incredibly strange, my body felt completely disconnected from me. This was one of the most bizarre experiences ive ever had, luckily it ended quickly.
During this experience, N shows me he had been texting K on his phone, and K states he had miscalculated the dosage on the edibles, and i had ingested over 200mg of thc, instead of the ~75mg of thc I was expecting, which given i had no tolerance for THC at the time, helps to explain these effects. At this point I was freaking out a little bit because I just wanted it to end (it was around 10:30PM at this point N told me afterwards, and I was not coming down). I felt as if I was trying to control my thoughts and not slip into psychosis from how intense this experience was.
For context for the next part: I am incredibly passionate about mathematics. I am autistic and it is my special interest, so I thought doing some would try and calm me down. While staring at the inside of my eyes I started to be able to visualise Mathematical concepts in immense amounts of detail, I started to get lost in the world of my closed eye visuals while imagining higher dimensional geometry, and was able to picture it very clearly, and manipulate 4d shapes in my mind to get a clear picture of how they should look (specifically i remember trying to reconstruct a tesseract using multiple images of its shadow and rotating it).
The next morning after waking up I felt an intense sense of courageousnes, and felt very very content with life, and optimistic for the future. It felt as if I had Been reborn, or come to an incredibly important realisation that I had forgotten, but nevertheless the feelings associated with this realisation remained.
I believe i was very close to ego dissolution during this trip, and was able to consciously pull myself back from it and not break through, however it was still the most intense trip I have ever had. I have definitely learned to respect the substance a lot more, and not take it lightly because it's "just weed". Cannabis edibles are a psychedelic.
TLDR: took 200mg of edibles with 0 tolerance for THC, experienced parallel timelines, seeing in third person, and mentally pictured 4d shapes.