Sorry to hear about your crash. Be gentle with yourself, expect up and downs on how you are feeling and do rest and keep on TE for support. I had a major crash (shoulder destroyed, thankfully not my head) almost 3 years ago and still working through things now.

A member of my cycle club had a major head injury. He was going down a steep descent and his jacket stuffed in his pocket came out and lodged in his back wheel. He fell off backwards on his bike (bike OK) and hit his head. Of course helmets are not really designed for backwards falls.

He spent 3 weeks in a head trauma clinic as he had short term memory loss (couldn't remmebr what happened during the day). However I must say- he was back riding after 4 months. He recovered for his head injury in 2 months. Considering he also broke ribs etc in this fall I think that was pretty amazing.

Another member fell while riding and we found him out cold in the ditch. His head injury affected one of his eyes- it refused to focus and gave him double vision. He started riding again after 6 months with an eye patch over that eye, but did lots of riding with a small group of people he knew because he couldn't see on his blind side and didn't want to crash again.

+1 for stoking on a tandem- that's what I have done. You can close your eyes and don't worry about things while your legs turn over. Also spin classes kept me sane while I was off the road.

And yes, the best people who know what you are going through are other riders. I would go out to my club on Sundays just to have a coffee and lunch with my friends and other riders because they understood and gave me all the love and support I needed. including answering my emails I typed at 2am in the morning when I couldn't sleep because of the pain, telling me to go to the doctor when I got very down and blue and lending me magazines, DVDs, telephone calls and taking me out for coffee. It's wonderful what the cycling community does to support the injured!