Two stand out. While under the influence.
The experience of time stopping or freezing after bumping into someone at a music festival, it was only for a perceived 5-7 seconds. As I swung off this dude and began to lose my footing everything stopped. Sounds, people moving, the trees swaying, everything. The external physical world stood still as did my physical form but my brain and thoughts was still moving at regular speed, able to understand the outside world had stopped but do nothing about it. The closest I’ve found to explain it is a guy having a seizure in the shower and perceiving that the water had frozen, I simply cannot explain this one.
On a separate occasion, fish made of little black dots, almost like flies, swimming around my living room. They were perfect in form and movement, like being inside a fish tank. It was the strangest thing because they were full external visual hallucinations that I seemed to have no control over but could perceive as real. They appeared as real as the room around me.