Awww bless!!
I bet she is perfecting the "look what you've done to me!"- cheeky little monkey!
What the vet said about giving her something bland is quite normal. I remember when I took my collie home, him having being castrated the vet told us to give him only two table spoons worth of food as I think the anesthetic that they give them can sometimes give the dogs diarreah. I would gradually buold up the amount you give her over the next few days.
Best of luck- don't worry she will be bright as a button in a day or so's time!