Lately I have been suffering from intermittent insomnia. 'Suffering' is the wrong word - when I have a sleepless night it generally means that I go to bed normally, sleep for a couple hours and then wake up for whatever reason. At that point, I can either lay in bed and think about things or I can get up for a while. Tonight I find I am doing both. I was up for a while and played some video games on the computer but eventually returned to bed hoping to get some sleep.
Well an hour has passed and here I am. Not sleeping. I haven't been on caffinated coffee for months now - oh wait - today at lunch. Now I know why I am up.