Talk to your doc
Cscope can be uncomfortable-lots of loops, twists and turns in 5'-6' of bowel
Most pts and mds prefer a relaxed, comfortable patient: relaxes the bowel, makes for an easier procedure. Need not be "knocked out", just comfortable. Rare patient asks for cold sober procedure; most don't repeat it that way. Would have IV access anyway, in case you want or need meds or fluids.