I have a couple of ideas. Take what you want, leave the rest:

How much of the depression, agitation, and insomnia are from the stroke?
Does she recommend the same treatment you are receiving for bipolar disorder? Or may other treatments be helpful instead, or in addition to that?

What kind of rehab does she recommend based on your symptoms, and the area of you brain effected by your stroke?

Does she recommend any other type of rehab or treatment that might be helpful for you?