My neuro said that the brain can reach a tipping point where it cannot recover. Basically, the processing reserve becomes overwhelmed. That is my case. I have had 3 NeuroPsych Assessments over a 12 years period and the results have been consistent. For me, it was a cumulative process of 14+ concussions. 1 severe, 4 moderate and 9 mild to very mild. Over 35 years, my limitations became more pronounced.

I have work-arounds for just about every limitation except my struggle to process to drive. I can drive but have found myself in too many near misses to drive consistently. There are some things I just cannot do at a pre-injury level, mainly due to memory dysfunctions.

I don't know how you can determine if any of your symptoms are permanent other than testing over a long period that shows no improvements.