I have a 3 year old kitty (Cinder) and she has lost some weight. She used to weigh 10 pounds. I'm not sure what she weighs now. I'm going to weigh her tomorrow. The end of July, I lost my 13 year old male cat. They were very close and got along like they grew up together. I had to put him down and it was a very hard decision. At the beginning of Sept. I adopted two kittens (same litter). Cinder was VERY mad, but now she is getting along a little better. They kind of play now and chase each other, sleep on the same bed during the day. I didn't know if this would be the cause of her weight loss with alll the change the last couple months. She's lost enough weight that it concerns me. She doesn't look unhealthy and she eats, drinks and sleeps fine. For the last month, every day she brings home a mouse (dead). I'm worming her tomorrow. Could all the changes in the last couple of months be the issue? I could use some advice. Thank you.