Feeling sorry for myself

Did my AS revision lesson in the morning, which was good as ever - they are very good natured and take it as intended (a compliment) when I am incredulous that they can't remember how moraines are formed in any detail, for example... I leave those lessons thinking that teaching can be something so enjoyable and rewarding that you'd do it voluntarily (I almost do, of course ;D).
But then just felt iller and iller... Not helped by intense conversations about world views and cognitive dissonance :/ ... When I left over half my fish and chips I KNEW there was a problem... In the end only took Strepsils and paracetamol - the whisky and the Nytol I never got round to...