Firstly, don't give her milk. It is good she is not drinking it. Cows milk is bad for cats. She also does not need salt in her diet.
Secondly, she needs to see a vet. All sorts of things could be wrong and she sounds as if she might be anaemic. If she has runny eyes it is a sign that all is not well. She is only a kitten and you must get her looked at by a vet very, very quickly. Kittens can before very ill very quickly and if you delay you might lose her.
So please get her to a vet and let us know how you get on.
(If you can't afford a vet, contact the blue cross or the RSPCA, or, better still, the Cats Protection League for your local area. Click on the link below, and give them a ring for advice):
http://www.cats.org.uk/contact/findcp.asp