I am extremely sensitive to head trauma just like your daughter. I developed a migraine so bad that I had to lay in bed and stare at the wall in silence for two straight years. My doctor, who wrote the handbook on headaches, and it's one of the world's leading researchers on migraines does not believe that there is anything wrong with my brain. Chronic pain disorders can develop as functional problems-- that is problems with feet brains neurocircuitry. But that doesn't mean that there is a structural problem. From your story And the kinds of impacts your daughter has received I wouldn't be so worried that she has brain damage. Like me, it sounds like she might have a pain system that spiraling out of control. Have you seen it neurologist that is certified 2 treat headaches? It took years for me to find the right medicine but when they did I'm finally able to function just a little