I have aging/crash issues as well. Had a battery of medical exams to analyze memory loss/forgetfulness. Was some concern over CTE or Alzheimer's, seems the likely candidate is some other frontal lobe concussion syndrome. Need to go for yearly neuro-pysch workups to track it. That's basically 4-5 hours of doing various memory and logic tests.
Doubt I'd race track nats (but who knows) but I might come over to visit with folks.