How To Know If Kitten At Shelter Was Ferrel?

I have a kitten I was told she has a flea collar and is very tame. She however, does not want to eat any food or drink anything but water. Should I take her to the vet? Where should we go to check it out? Thank you for your help!

Veterinarian’s Assistant: Is there anything else the Veterinarian should be aware of about this kitty?

She is sleeping alot and since she has been here three days it seems that she isnt really taking anywhere from me know what its like with a cat that doesnt want to play at all.. But every time i try and pick her up she runs away.