Cats are finicky at times. My cat, of 12 years, just decided she doesn't like her canned cat food any more! I would give that to her for a treat. Luckily, she still eats her dry food which is filled with the nutrients she needs.

If your kitty gets hungry enough, she'll eat. She may have picked up some bad/other eating habits while you were away. I think it's best you start the kitten on some good, nutritious cat food. Once she figures out that is what's available, she'll eat.

Keep on watching for signs of any illness just in case. Although, I feel she's just exercising her right at being finicky at times. ;)