This utterly mysterious fatigue that seizes me when I turn from the computer to the book. (As almost no one else in this enormous room does, as they're largely all here to cadge free internet and desk space.) As if everyone walking towards me, as they approached me, literally drew the energy out of me, and I almost go unconscious.
Music helps. The brain is less subject to its decaying patterns.
Clearly a function of the circumstances, as it's only emerged in the last six months or so, after having been cast back down into the city to survive in the rough for a bit.
Mysterious.