I'm not sure how old sydney is as i rescued him, he has lost a lot of weight, he is drinking when i syringe it in him & he is taken quite a bit, having problems syringing in mushed up pellets as they keep blocking the syringe. he is hardly moving and mostly stays in one place and wants to keep going to bed. i have 2 other gp but one of them bit him quite badly about a year ago so have to keep them apart but they are next to each other in c&c cage, and i put them together while i keep an eye on them. please **** tell me how i can help him as he is my baby and is very tame, the vet didnt know what was wrong with him but didnt really seem that bothered! he has been back a few times and she just keeps giving him antibiotics.