:werd: This is where you need to start

Legally, as long as she is of sound mind, she calls the shots as far as what doctors she wants to see. Only in cases where she is mentally incompetent or unconscious can a medical proxy dictate treatment. If you call her in to the police as being threatening or whatever, the only recourse you really have is a restraining order, and I think that's probably counterproductive in this case.

Is this something new? Has it always been this way? Is it getting better or worse? What sort of problems has she had at work recently (or other problems)? If this is a sudden change, then something had to have happened to set it off. People don't go from regular to crazy mad without some sort of provocation. I think the key is to ask her why she's so mad, and lay out your concerns. Don't bring up a doctor or psychiatrist. Find out where she's at.