I never had a problem flying before my injury in 2001. Since then, the over-stimulation has made flying much different. I used to enjoy flying. Now, I need to be very disciplined with how I respond to stimuli at the airport and while in the plane. My wife would rather drive 8 to 11 hours than deal with the struggles I have getting through airports and the flight. Planning makes a big difference.

Focal injuries versus diffuse injuries may make a difference. If over-stimulation is not a problem, then flying might be less problematic. The 8,000 ft altitude does put the injured brain under mild oxygen stress.