Change in her behavior and weight!
I have a cat, she was an astray I've had her since last oct at the beginning she was slim, but put on weight after a couple of months, two weeks ago when the weather changed I noticed she slept the entire day which I found strange, after a couple of days I noticed her stomach seemed sucked in when before she had a belly, she hasn't gotten any worse but still lies around all day when before she wanted to go outside or would follow me everywhere I went, I took her to the vet to get her vaccines up to date and had her tested for lukimia and the cat fiv and was all negative, they said that she looks healthy, but they didn't see her before, and as I'm writing this there she is laying on a mat I made for her can anyone give me any reason as to what's happening is she sick or just going through some changes. I don't want to loose her if I can help it. Thanks