She'll be just fine. Are you bringing her home in the evening? If so, she'll be allowed only a very small amount of water and maybe a little food, so she won't be sick from the anesthesia meds. Just be careful and keep her from jumping or running for a few days. Don't want to pop the stitches. Keep an eye on the incision to be sure it doesn't become infected. You may want to pick up a onesie so she won't lick or scratch at the incision while you are asleep or not watching her. She will be back to herself in a few days.