From an artilce on nascar.com, this does not sound good to me.
http://www.nascar.com/en_us/news-me...ale-earnhardt-jr-concussion-update-dover.html
The only thing that triggers the symptoms is going somewhere I'm unfamiliar, somewhere I've never been … somewhere where it's busy," Earnhardt said. "If I can find a busy place, if I go with (fiancée) Amy (Reimann) to the grocery store … that's basically rehab.
"(But) it's getting better. My doctors talk about getting me back to where I can be a normal person, and then there's getting me back to being a race car driver. I'm almost back … to being a normal, functioning person with no issues. To become that guy I need to be inside the car, we really have to train my senses to be perfect."