i would call the vet and get the vets ideas on that cause they can tell you more even if they had the kitten right in front of them and he could do a first examine on the kitty i'm sure you want to find out as much as you can
NOOOO! NEVER give kittens or cats milk! It can constipate them and actually cause them to die. They need KMR (kitten milk replacement) Its a formula made just for kittens.