I'm feeling a bit better today. Still feel like something's lingering, but I'm also beginning to wonder if this is just (marathon virgin) nerves manifesting themselves. (Taperchondria is my new favourite word.) As long as nothing gets worse between now and Sunday morning, I should be fine.
My Gu stash arrived from eBay last night so I spent the evening trying to wedge them into the tiny loops on my iFitness belt. I reckon that was as tough as the race is going to be. Doing some preparation for the race helped to ease the nerves a bit.
Have also found a quicker way for me to get to Abo on public transport, so that's good. Fingers crossed for us all, from you sub-3ers to me at the back. 
Edited: 19/10/2012 at 12:21