MsRriO,

Here is a link to the ACE concussion test for. Take it to any doctors appointments. It is old school but likely better that what his doctor knows. http://www.cdc.gov/concussion/headsup/pdf/ACE-a.pdf

Here is the SCAT-II test. Notice it is a Canadian web site so it should be familiar to some doctors.
http://www.cces.ca/files/pdfs/SCAT2%5B1%5D.pdf
http://www.cces.ca/en/home

Be strong when letting him evaluate himself. Try to express the risk of long term injury if he hides symptoms.

It should give Momma Bear some growl.

btw, His crying can be a symptoms of unresolved concussion injuries.

My best to you.