I had a colonoscopy yesterday and told them to stop. I couldn't tolerate the pain. The sedation was woefully inadequate. NHS do not seem to read your notes properly and this would have said that since 2012 I have had two colonoscopies under sedation which were stopped and since then I had them under GA. I had a therapeutic colonoscopy last year and was heavily sedated for two hours and precancerous polyps removed I didn't feel a thing. I am so annoyed and traumatised by yesterday I thought they would do the same level of sedation. A total waste of time and money for the NHS. I now have to have a GA and have no idea how long this will take plus going through that awful prep again. I am no princess the pain was terrible and I was not scared to say no more. Why don't they read your records and tie things up with previous treatments.