My Roxy was spayed on the same day and when I picked her up she was groggy and a little out of it till morning. When we got up in the morning you would of never known she just had surgery. It was really hard to keep her relaxed and calm for a week. Her personality did not change at all nor did her appetite. I was really worried because she had to have 7 teeth pulled and was prepared for some finicky and soft food. But I just added a little chicken broth to her food to soften it and she ate it right up like shes never eaten before.
I would def. call your vet and just ask them. I hope she is feeling better for you soon.
__________________  Bella  Roxy |