Your kitten just came to your house yesterday he is not eating or drinking or peeing?

I'll answer the question that seems to be asked here; What do you if your kitten is not eating, drinking, or peeing after the day you bring it home?

Well, there are three things; stress from just being brought home, maybe a small cold, or a disease. The most likely is the stress from being brought home. The kitten needs time to get used to its new surroundings.

If you think a cold may be coming on, monitor the kitten a little bit more. If you see symptoms of ANYTHING, call your local vet.