Bastet looked like that *concave* when she was spayed. The uterus in cats is a BIG organ. The vet didn't give me an e-collar either - he said that if she touches her stitches let him know. Cats hate not being able to groom themselves and puts psychological pressure on them if they can't. Maybe your vet didn't give you a collar for that very reason. Noel looks like such a sweet little kitty. She will be fine after a good sleep and a good feed