I had my first colonoscopy at the end of last year...Before that, I had a flex-sig done which was by far without a doubt, worse!!!If I can help it, I will never have another flex done...The c-scope was a piece of cake...I barely remember anything...I do remember watching some on the sreen as my dr. made his way through my intestines with the scope...I saw them take biopsies and didn't feel a thing...I felt no pain, but at one time I felt a little pressure, but didn't hurt at all...I guess that was them filling my intestines with air...My point being, I had much rather have a colonoscopy than the flex-sig any day...You will be fine!!! Oh, I'm not sure what sedative I had, all I know is that I didn't feel anything and it felt like I was only in there for about
5 minutes, but my husband assured me, it was much longer than that...Good luck and let us all know how it went...