Nevertheless, cumulative sleep deprivation that started before the flight resulted in post-flight headache, body temperature flux, body aches and hints of nausea at the sight of perfectly good food. Sleeping for the bulk of the weekend cured most of that.
Yesterday was the first day of registration. Took care of it all. Feels good!
Still tired, but the hyper-heated dorm and being back right by the street makes it hard to sleep more than a few hours at a time. Will have to work on that.