My kitten is crying and not eating too much, hes just been 24 hours with me, should I take him to the vet?

I just got a little female kitten, two months old. When she arrived she run and hide, which is normal I guess. But know shes been always hiding, I havent seen her eat, or drink any water. Today she just peed in the floor and she cried a lot. I am worried shes suffering too much and may have a disease. Is it normal, or should I take her to the vet. thanks