Ok thanks, and I forgot to say whats wrong with Tink...
It was fleas. She weighs 1.2 pounds, and they were sucking the life out of her... She got treated for fleas, and is now a normal puppy. We are still waiting for the results of the ChemPanel though...It had to be sent out, so we are waiting to see if anything else is wrong. Praying that nothing is wrong, because she seems fine now