My cavy Midnight, he's losing hair, i'm not sure if its normal shedding or if its mites. I recently cleaned his cage and such. I also feel like he's not gaining weight like he should be. On the off chance he doesn't get his pellets, or vitamin C tablet (not very often), he has hay no matter what. My sister is in school to be a vet, but she doesn't exactly like me. So i don't want to go directly to her if i dont have to. I know i should but i dont want her to yell at me.