I am feeling pretty crappy today, probably because a fairly difficult Sunday afternoon run left me too wound up to fall asleep normally. I wound up going 18 miles, with the first 10 easy, then 3x3200m at threshold pace with 400m recovery on the track. I did not feel too bad running, but I got done at 5:30 in the afternoon, which was late enough to disrupt my sleep cycle by a couple of hours. I probably didn’t fall asleep until 2:00 am, and had to be up at 6:00 to come in to work at 8:00. The end result is that I am feeling pretty stupid and useless today; barely awake, and not very sharp mentally. Sigh.