Lots of new stuff happening to her. She's probably a bit anxious about what's coming next., that is bound to have an impact on her appetite. I know how bad you want her to eat, we've been there a few times. Try not to overdo the bribing, it may continue long after it's needed. Then again, if you don't mind, so what! She is a senior daiva and at this point in her life she deserves the pampering.
You and Sprite are in our prayers. I'm really interested to see how this treatment works. I believe that is the one Foxy was/is going to have if she had a re growth.