Yes, I'm dragging.  Here's why.

I used to think that the concept of "jet lag" was nothing more than a myth - an excuse for travelers who were perpetually bleary-eyed and who just needed another cup of coffee or juice or somesuch.

Then I took five (5) individual flights to differing cities in the span of seven (7) days.  That's all.  Just five.

I've had six Tylenol™ today trying to get rid of a headache that keeps laughing at me.  And my ass is dragging as if I were pulling my truck at the end of an iron chain.

Yea, I shall not doubt the concept of "jet lag" ever again.  Ugh.