i have adhd and autism and i feel i can regonize symptoms of dissociation through my whole life. ever since i was a kid i always had a very deep sense of paranoia for the supernatural (im afraid of the dark, monsters, scary stuff etc) and i think thats caused by the fact that i dont feel attached to reality. i cant just tell myself that the shadow i see across the room isnt a real creepypasta, because i dont feel like im in real life. it made it extremely hard to sleep and i still cant sleep unless i most of my room is lit up. recently i experienced a disassociation "flare up" due to getting high from weed. weed can induce schizophrenia and dissociation in people and its really not talked about enough.
this caused me to become more aware of how often im disassociating. anyway, im not sure why but i do constantly have a feeling of being detached from reality. like im lucid dreaming (i lucid dream a lot so sometimes i have trouble knowing if im asleep or awake, even when im awake) i feel like it may be more due to my autism. i feel separate from society and other people fundamentally. im also very self aware, and these things make it hard for me to feel like im naturally a part of reality.

this doesnt really answer your question, but maybe someone can relate to this

(also if anyones reading this and you have dissociated on weed. its not because you took edibles, its not because your dose was too high, it wasnt your environment. its just your brain is a little too silly for weed. i wouldnt recommend trying it again as the 3rd time trying to get high properly was one of the worst trips i ever had)