My guinea pig, Rocket, won't eat and won't drink. I've had him for about I'd say maybe a year or almost a year and he is supposedly a male but I'm not quite sure. He has milky pupils. He is very skinny, he seems to limp to a corner and just sit there. My other guinea pig,Neveen and a male supposedly, cuddles him, and lets Rocket climb on him. They share a pen. My family can't afford a vet. Can somebody give me some advice please? I plan on selling them soon, to capable owners, but I can't lose him.