The doctors in the ER found the source of her pain and reason she was not eating or drinking… she has ulcers in her mouth...four of them. Mouth ulcers are a common side effect of Phoebe's medication.
The doctor did not want to admit her to the hospital given her immune system and the immunosuppressant she is on. He also felt that we had brought her in early enough that we caught her dehydration in time that some IV fluids and a mouth rinse to coat the ulcers would do just the trick to help Phoebe bounce back.
Phoebe was still in a great deal of pain when we were discharged from the ER, but all we can do at this point is try to push fluids as much and as often as possible, and hope the ulcers start to heal so she can have some relief from the pain.