The reason why they say not to feed is because it the anthesia will make them sick with food in their belly. If the vomit while under it could aspirate into their lungs. Which is dangerous.
They will wait to feed her until after. However, it still can make them vomit . I have had surgery, and my brother took me out to lunch. Not even an hour later, I puked sooooo much .
The stomach needs to be empty before and after surgery. They do not even like it if you give water !
How are thing with your Layla now?