I would fire her and find a lawyer to explore the option of suing her for malpractice because this is what it looks like to me.

As to the whole DSM thing, while I somewhat understand the necessity to use some kind of labels for insurance purposes and just to point out some behavioral patterns, I completely reject the notion that they have the same validity as other medical diagnoses. I don't want to get started on this subject because to me this entire idea is an Orwellian Newspeak.