Is it normal to have disturbing thoughts?

recently my girlfriend of 5 years cheated on me. we grew up together. im 21 now. i did everything with her. when we broke up i started having really weird thoughts. thoughts i never had. i know they are not normal. i feel like this is what scitzos feel like. my thought process goes like this every day now.

im bored, i look around, everything seems blurry and i dont know where i am but i really do, i picture distorted people wanting to kill me. like weird faces. its like my mind finds them to to be disturbing so i purposely bring them up.recently i look at people and i see animals, they arent even people. like im on another level on existence and thought and they are just basic. like how empty a bird's thoughts are, thats how i see other people. also, i feel so weird in my head. ill be at work as a cook, and the flouresent lights and the greasy floors and the constant sound of the beeping from the drive through it gives me this horror movie vibe. but not a fun horror movie, a dark disgusting movie like human centipede. and this vibe i get keeps coming up again in different situations. i dont know what happening to me. im afraid to tell anyone, they might call me crazy.

i dont know if i am crazy or if im WAY OVERLY stressed. because ive been 110% normal my entire life.

when im around people, the feelings go away completely. i feel like myself. but the second i know the conversation is about to end, it starts.