Update:
Mark, in answer to your PT question, the PT was to rule out vestibular issues and they have given her balance and walking exercises to do every day. She went a few times but I will probably cut it back now and let her do the exercises at home.

M's neuropsychology results are in. The testing showed a very high IQ but low processing speed. The agrees with my observation that she is quite slow on written English assignments. But Math speed is OK.

I liked the neuropsychologist. I feel she understood my daughter's case and made good recommendations. She spent an hour on the phone with her school and me discussing the return-to-learn plan. Here are the details:

-Cut school load so that headaches stay at "light" pain level or below. Currently her headaches are a mix of light and moderate.
-M's class load to stay at 4 periods per day out of 9, alternating class times with rest periods in the nurses office.
-Take 5-10 min breaks between classes when she has classes back to back.
-Cut homework to 30 mins a night. Previously she was doing 2.5 hrs to try and keep up.
-Tests to be limited to brief quizzes and she will be graded on a pass/fail basis. Previously she was taking regular tests in those classes she was attending.
-Regular logging of headache level and revaluate in 2 weeks.

Her processing speed issues may be due to:
-Perfectionism. The neuropsych noticed in testing that she had a tendency to hesitate on an answer because she wasn't sure it was right, and to go back and forth on it for a while. I've noticed the same thing in homework. The neuropsych recommended that she see a therapist for this.
-Side effect of the topimate she's taking (50mg, a light dose) which can make the brain foggy.
-Other unknown factor due to the injury.
I am thinking of getting her a special ed. teacher to work specifically on the processing speed issue for 90 mins per week or so and flush out what is really going on. Maybe she can be re-educated on this. It will probably need a really good special-ed teacher who can adapt their techniques to her particular case as she does not have a learning disability, she has a brain injury.

Any comments are welcome.