Time loop of the worst moments of your life
The absence of anything good.
Constantly feeling the need to sneeze while in a cold shower, but never actually sneezing.
Surrounded by a swarm of endlessly screaming crying whimpering puking pissing and pooping infants and toddlers, knee-deep in dirty diapers, in a locked room that stays at a constant 100 degrees and 100% humidity.
Nice try, Satan.