We adopted two 12 week old kittens in June of 2008. They're from the same litter and they've been inside our house the whole time and they're both neutered and vaccinated. They are our only pets. (Side note: we did not have any presents or a tree for Christmas....nothing bad, we just didn't, so no, he didn't eat pine needles.) About a month ago, Jack started walking REALLY slow (like he's 100 years old), hiding in closets and under the TV (he never hides), hissing and swiping when Eddy came by to play and his eating and drinking has slowed considerably. He doesn't move unless absolutely necessary and cries when he's picked up. We took him to the vet and they did a urinalysis and thought maybe he had an infection. We did antibiotics for a week, and took him back in. He had lost over a pound and wasn't any better. The vet did bloodwork and said everything came back normal. Jack is not normal....something is wrong, PLEASE HELP!!