Throughout much of the season, I've managed to maintain a fair level of mental health. I was thrilled by the sunset, enjoyed the darkness, and got a second wind along with everyone else at sunrise. Since then, however, things have started to unravel a bit.
I never really hit the irritable or angry phases of toast, and it came on so subtly that I didn't notice until it got relatively serious. I skipped straight over the hiding-in-the-room and anti-social stages, and simply stopped paying attention to things.
It's not that I became distracted, mind wandering off during conversations. My attention is still as focused as ever, there's simply less of it there. It's as if I'm still aware of all my surroundings, but many of them don't fully register. I still behave as before, and do my work as easily and efficiently as ever, but several times a day I'll realize that I have no idea what I just did. Or what had for breakfast, what I had planned that evening, or what someone just said to me. For three days this week, I had a mild suspicion that it was Tuesday.
A more common variant of this is the Antarctic (or Thousand Mile) Stare, where people gaze off into the distance, eyes glazing over, mind slowly shutting down. People all over station have begun doing it, but it's not quite what I have. My eyes still focus, my mind is still running. I'm just not paying very close attention to life anymore.