Good topic title. Caught my attention.

1) Possibly

2) The descriptions you read may have failed to mention this could last anywhere from weeks to years, depending on the factors involved.

3) I sure hope so. Avoiding more impacts, stress, shaking the head, and other triggers will make a smoother ride.

Million dollar question. Maybe some people who have healed can post a response. I do see them around here or Daily Strength TBI forums much-