Ive got a boy who's about a year old that was the plumpest of my 3 but in about the last week he now seems like he may even be underweight. I can't tell for certain because I don't weigh them but his spines a little bit pronounced. Hes still eating normal and active and interested in doing things, if possibly taking more naps. He's even running around my room as I write this. We did just move and they seemed pretty stressed out by that but it just seems like a dramatic weight loss. He also seems to be drinking more and I know that can be a sign of renal failure so maybe there's too much protein in his diet? I feed them oxbow with supplements of fruits and veggies but I do give them cat and dog treats too which have a decent amount of protein. I do wanna take him to the vet but I thought I'd ask here first because if I don't have to take him I'd rather not put his through that stress. Any ideas?