Whilst the NHS uses propofol for sedation with colonoscopy there are alternatives. Maybe you could contact the department to discuss? I did find the colonoscopy very uncomfortable and a bit painful without sedation and have had sedation ever since. It's never knocked me out just made me relaxed.
^Spongers, cheats and liars - everything I have learnt about men in a lifetime of dating^
What was your favourite board game as a child?


. I will see how I feel on the day!