I agree with the others. The neurological vs psychological is the problematic issue with neuro-psych assessments. If the neuro-psych doctor has a psychological bias, it will be likely that he will diagnose a psychological condition.

The true value of a neuro-psych assessment is validating you symptoms. If you are struggling cognitively, it will show a weakness. It helps to define your cognitive and memory struggles. It also help to have confirmation so you can know you are not going crazy.

You would likely benefit from keeping a journal of your daily activities and symptoms. It should include sleeping, eating, and the environments you are in. You will likely find some common triggers to your absence seizures or whatever they are.

How do you sleep? Do you wake up refreshed or still tired? Do you dream?

Most PCS symptoms are made worse by triggers. If you can discover them, you will be able to minimize their effect.