I do not have access to a facility, so I have not tried this, but it looks really interesting. http://impacttest.com/
It is a way to test what is going wrong with us after a concussion. It can also help monitor progress. This way you have some concrete proof for your doctors, work, etc...
As I said, I have not had this done to me because I do not have the opportunity, but it looks promising.
Good Luck!
Margarite