anesthesia
"Yesterday, second colonoscopy with propofol.  First time, no problems whatsoever.  This time is a different story.  After waking, uncontrollable shivering and sneezing.  I feel like I have flu.  I could not sleep after getting home because of sneezing and constant nasal drip.  Today, a little better, but throat is sore and the sneezing, drip continues.  Eyes watering.  Headache.  Not sure if I want this medicine again."