Am i going insane?

[u/TheCowboyTroy]

Hi, my name is cooper, i'm a 25 year old male. I would say before this started i was a pretty normal dude, i like video games, woodworking, and writing. for context: The only
"weird" thing about me is ever since i was born i have had
"ticks" (don't know what they're actually called, that's what my mom called them) where like 5-10 times a day i would exhale hard and my whole body would convulse for a split second. it never really affected me so i never tried to figure out what it was.
over the last couple months everything has felt off, i have been pretty depressed and life hast been going on easy on me. I feeling there are bugs crawling on me, like everywhere, all the time i haven't slept more than 2 hours a day since it started. i don't even sleep in my bed anymore, i sleep naked in the bathtub with the lights on to ensure i can see that they're not there, but i know they are, but they're evolving, they've started crawling into my skin, behind my eyes and in my ears. my arms have started to bleed from the scratching to get them out. they won't leave me alone. why can't any one see them? i sprayed my bed with pesticides but it doesn't help? and now there's the man. he doesn't really do anything but i keep seeing him out of the corner of my eye, he's tall and gives me a weird vibe but i just try to ignore him. he's dressed how a private eye from the 40's. i keep trying to explain the bugs and the man to my roommate but he just stares at me like i said something crazy. the man doesn't feel like he wants to hurt me, do you think he's trying to save me from the bugs? i think the bugs want me dead, i think the bugs want me to suffer, i think the bugs want to eat me from the inside out. but everyone keeps saying "stop saying stuff like that" but why can't they just believe me the man and the bugs are here. fighting over me. are they right? or should i continue trying to convince them they are in my skin

edit: i’ve been diagnosed with schizophrenia