Where do cats lose weight?

My cat has been dealing with severe allergy problems and wasn't eating as much. Her "belly" area seems the same size but when I pet her back, it feels slimmer somehow. Am I imagining this or can cats lose weight that way?

My cat got real sick and she loss alot of weight she only weighs 6 lbs =( And she's 6 yrs old.. I can feel her ribs. But she is slowly getting her weight back. How much does ur cat weigh and how old?

Kandie lost tummy and right above the backside aka tail base

When ours lost it they would lost the tummy.

When Snickers was sick, he lost a few pounds, and it seemed he lost it in his back. He still has a little bit of a jiggly belly (he was FAT when he was younger) but you can definitely feel his spine through his shag fur.

It seems to me it's all gravity related... the fat kinda dropped down or something and his back got boney.

I never thought of the fat drooping before, but that does make sense. I guess cats, like people, can lose it in different places. Thanks.