I was at the gym again this morning and half an hour into exercise I had to stop as I could feel the beginnings of a migraine approaching. I came home to discover my undrunk morning cup of tea from breakfast time. So, by 9.30am I had a headache because I hadn't had my usual breakfast bucket of tea - that is a slightly worrying sign of my body's caffeine dependence. That February detox is going to hurt! In the meantime