wen Jessie was spayed last year it took her about 5 days to get back to normality. She was nibbling after a day but it was so much effort to eat anything, she really was feeling sorry for herself. The only thing you can do is be persistent and keep offering her food, in the end I think Jessie just started eating so I would leave her alone! :roll:
Sounds like she is on all the right stuff, the metacam is really important as if she is in pain which is quite likely, she just wont eat.
Dandelion leaves always seem to go down well, maybe try these if you havent already.
Lots of love always goes down well too, lots of vibes for her xxx
oh and is she going to the toilet? you need to keep a real close eye on toilet activity... x