My daughter is also very fragile. She can walk now, but car rides, plane rides, subway or other vibrations (even loud sound vibrations,) cause major symptoms.

She missed a couple of stairs and landed on the floor, but it seemed no big deal. Then with in a week, all of the concussion symptoms came back. Another time, I braked too hard in the car, and it was a slight whiplash motion, but that set her back for a few weeks too. It seems that any slight head motion, even gentle dancing, sets her symptoms back. She is worried that this will limit her life forever, and I really don't know what to say.