1) Professional to rule out Depression and ADHD
2) Medical to follow up on the eating thing.
3) Keep up with the Dentist if she is going to be living on candy for a while
4) Take her out of the virtual High School - going to high school is a privilege, she need to demonstrate that she is ready for High School Level output - independently and politely - before you agree for her to stay with the program.
5) Is she well enough to enroll in a community college class or university class AS AN AUDITOR. Hire a tutor to give tests and papers based on her product level.
6) Is she well enough to visit Reno and apply to Davidson Academy? It may not make sense to send her there, but I think going through the admission process, and meeting other kids like herself, might be helpful.

You say that she has 'interest of the day' - if so, let her pursue them. You have tried your best to slow her down all these years - she is asking to slow down with her behavior, so take advantage! Maybe don't think of it as unschooling, just as a Sabbatical without Internet Access?

OTOH, Maybe working on her current studies 2 days a week is perfect for her. But I wouldn't continue at any level she can't work independently at.

Love and More Love,
Grinity


Coaching available, at SchoolSuccessSolutions.com