So sorry to hear that she didn't get to come home with you. We had bili problems, too. She was fine in the hospital, but two days after discharge at her first doctor's appointment, she was up to 19.2 and had lost a full pound. Fortunately, they didn't put her back in the hospital but instead had the home health company bring two blue lights to our house and we set up our own little hospital room for her. She had to be under the lights at any time when she wasn't eating, which made for a very long 6 days (plus, we were told we MUST feed her every 2 hours) but she rebounded like a champ.
Fingers crossed that your Reilly's levels come down quickly and she gets to come home soon!