I’ve got some bug which had left me feeling crappy all day, I’ve gone to bed early, taken some paracetamol and tried to settle down. 
Thing is, I can’t get comfortable whichever way I turn, and I’m lying here wide awake at two forty in the morning!
Actually I don’t feel awake, but sleep won’t make an appearance, so I’m writing this instead. Don’t just lie there in the dark. Do something to make you sleepy they say. So here I am.