From nowhere, a ridiculous comedy cold. I spent Sunday sneezing but clutched at the dusty knackered Adam House straw as I almost always lose my voice when I have a cold.

But yesterday, sitting innocently at my desk, the sneezing progressed farcically speedily into a stuffy head and a streaming nose. How can this be?!

If willpower counts for anything, I have talked myself into it being a head only cold that will be gone by Wednesday, dress rehearsal day.

And right on schedule, I like to think it peaked at 2am last night when I thought my head might burst. This morning, heavy head and yucky nose but no suspicious throat symptoms.

I've been guzzling vitamin tablets so let, oh let willpower win the day.