My cat Charlie is 11 months old, about two months ago I noticed he was putting on weight, but since he is not very active I didn’t think much of it until recently, he has gained a substantial amount of weight, most of it happening this last month, yesterday I went to feel his stomach and it seemed to firm to me, so I brought him in to the vet. The vet also agreed his stomach was abnormally firm and we did an ultrasound, she said one kidney seemed small and she couldn’t find the other one, she also said there was some weird shadowing on the intestines that she was unsure what that means. I had to leave him there since I had appointments today and he is staying over night cause I don’t have time to pick him up. They did X Rays after I left and there was a lot of fat around the kidneys. They are sending out the x rays to a specialist for a second opinion. In house blood work came back normal. So now I’m just waiting. Anyone ever experience this? Any ideas what this could mean? Thanks!