bowel preparation
"I have a colonoscopy tomorrow.  This is by far the worst tasting prep I have ever used.  I started at 5pm.  It started working while I was on my 2nd 16 oz. of water. I have to take another dose at midnight. I’m not happy about that.  I just hope I can get it down.  I felt extremely nauseous.  Not sure how long I will be in here.  I’m hoping to get some sleep before my midnight dose"