I agree.....think that tests would be the best thing....think there are some testing information in some of those sites. They can determine if the problem came from the head trauma as an infant along with the later injuries.....or whether it is some form of other problem. They have advanced so much farther in these areas now....I am sure that you will be able to get some helpful IRL answers......internet just points you to where you need to go for the help.

Wishing you the best with this...know how important things like this can be to our life & understanding ourselves better.