OMG they gave her NOTHING for pain? That's so wrong
Please call them first thing in the morning and demand meds for her. Shoot, that's just awful that she's having to suffer
Maybe you could call an emergency vet and ask about pain meds and what you can give her?
See if you can just get her to hold down some chicken broth and maybe some plain white rice mixed in with it, tiny tiny amounts of everything until she's feeling better. She does need to eat soon to get her strength back. Bland is best.