Thanks for all the well wishes. Recovery is looking good, see the spinal specialist on the 10th Feb.
As to what happened:
Accelerating in traffic from traffic lights when the driver in front slams his brakes on for no reason. I grabbed mine, front locked and I didn't even have time to let go and reapply before I was down and the bike slid into an oncoming stationary van. This only happened at about 45-50 km/h. The damage to the bike was caused from hitting the van, the damage to me was from being hit on the top of my head from either the top box, rear tyre, or trailer.

This happened on the 19th December, Insurance company were good if a little slow ( XMAS Holidays etc.).
Will catch up at an RTE sometime soon