(yes to the HPPD thing)
yes
im sorry to tell you it is, i used to trip a whole fucking lot, i had a hit of what im prety sure was 25-i, no way of telling sadly though, that was 3 years ago.... i havent felt "the same" since, i have forgotten what "the same" feels like or is, i do not know normal, but i am also schizophrenic since i was 6, or earlier who knows thats just when i first talked to voices in the air and ran from violent murderous shadows, so that could make it much worse, but in my opinion its the opposite, i dont remember hallucinations being problematic before that
(No, running from shadows and talking to voices wasnt bad, i don't remember being very scared unless i was alone, i had this glimmer in my head of a kind of peace and clarity, a feeling that i'm safe and peaceful, its just a dream, its all ok, a feeling that has no existence without heavy narcotics these days)
contrary to the other posters, i found and still find weed to help, but need cbd in high amounts mixed in, or i hallucinate and become delusional instantaneously after smoking small amounts
in my opinion, anti psycotics are horrible for anything but completely incapacitating my penis for all intents and purposes for all eternity(or until you stop the psych pills)
if i were you, I WOULD GET TO A DOCTOR ASAP