first off...dont give it milk as a drinking source. alotta people give catz milk, not knowing that itz bad for them (they cant digest it). if you dont got cat food, the next best thing would be to find a lil bit of healthy meat for it to eat like poultry or fish. if you dont got anything like that, you're gonna wanna get it real cat food...you'd wanna get it real cat food after awhile anywayz though.
if it doesnt wanna eat anything at all, it might be sick.