Do you mean your June 16 concussion was self inflicted by smacking yourself with your arm ?

It is almost impossible to hit yourself and give yourself a concussion. A sub-concussive impact, yes. But it takes hundreds of subconcussive impacts to cause damage in most cases.

You cannot do an IMPACT test on yourself. It has been over a decade since the IMPACT was even available for self-administration. Even then, the results were reviewed by a professional.

I do not believe you have any brain damage. You need the help of a highly specialized psychiatrist and psychotherapist, who, in combination, can help you learn how to think properly. CBT, Cognitive Behavior Therapy with meds would likely be suggested.

Has you doctor prescribed any meds for your conditions ?

What caused you to be so concerned about brain damage ? Did you watch a TV program or movie that got you thinking ?