Join the club.
I have had that 2 weeks of feeling crappy every season I have been a ref at some point...all you can do is drink a lot of fluids, get your sleep, then fight your way through it.
As for the coach...I've probably done 10,000 games and I have cost 10,000 teams their W.
Wasn't thought of too kindly by the 10,000 teams that did win either.
