have you been half asleep, and have you heard voices?

I am SO jetlagged, a good five days or so out from my return to Japan. Usually it's so much more simple coming to Japan than going to America. The trips to the US usually find me up late into the night and trying to fall asleep. In my fervor to avoid jetlag, I stayed up late almost every night in the USA, and got up early; it didn't provide a lot of rest. Now it appears to have backfired, since my early evenings have felt like the last half-turn of a wind-up toy’s key, and have found me ready to sleep by 20:00. It would be funny if it weren't somewhere between an affliction and fatigue. It is improving, since tonight it's 18:12 (boom-boom-BOOM) and I'm still relatively lucid.