So tired that yesterday I thought it was today and did Thor's Day on Wednesday.
So tired that yesterday I had a nasty cramp in my leg, got up, stood by the bed, got back in bed, the cramp came back (one of those great calf cramps that leave your muscle sore for days) and I just said "to heck with it" and fell asleep with the cramp still raging.
So tired that I can hear my blood rushing in my ears.
So if you are looking for Thor's Day, it was yesterday.
Thor sez: Doh!