I figured, since it was only 3 1/2 hours, and there are chairs in the classroom so I can sit if I need to, I'd be all right. O...M...G...I hurt SO bad it's not even funny. And I can't believe how tired I am. Those of you who have had this or a similar kind of surgery, help, please. Is this normal to be completely exhausted after a half day of work ten days after surgery? And if it is, how long does it take to not be exhausted, because I'm scheduled for three half days next week, and if I'm pushing myself too hard, I probably need to cancel some jobs.