Insomnia is something that comes and goes in my life. Like some kind of errant teenage boyfriend, taunting me, occupying my thoughts, wearing me out. He, let's call him he, is visiting at present. His usual visiting hours begin at around one am. Having gone to sleep reasonably easily by eleven pm I am suddenly, inexplicably woken and there he is. We go over and over stuff. Work stuff, tax stuff, money stuff, love stuff, family stuff, stuff that happened at university, at school, the list is endless. Almost every situation that has occurred in my life that is, or has ever, made me uneasy ...