Jaystar,
It sounds like you could benefit from a NeuroPsych Assessment. A decent neuro should be able to do a complete neuro exam and notice some of your symptoms that would point to the value of an NPA
I also agree with EsthersDoll. Take a family member who has observed your struggles.
If the person who can accompany you to the neuro has time, they should read the TBI Survival Guide
www.tbiguide.com to better understand how to recognize your symptoms. Be careful to not complain in medical terminology. It can cause docs to look at you as a cyberchondriac.