Hi there
I had one of these - and I was so scared - but I needn't have been. The pain from IBS was about a million times as worse and far more scary than the sigmoidoscopy. It was over pretty quickly, the worst bit was when he pumped some air in to inflate , but then that just felt like an IBS symptom. I could see myself inflate! The nurses were all very nice, as was the consultant. I could choose to watch on a big TV, but decided to shut my eyes instead. It didn't take too long. When they did the samples for the biopsy of the lining, that didn't hurt either, and it was over before I knew it!
The instrument used made me laugh as it looked like a garden hose (no joke, except it was black not green!)
I did find it a little strange that the consultant kept saying "just going round a bend now, it's a bit narrower here, round the corner, straight on" - it was as if he was driving!
I had to have an enema beforehand and that was far worse than the procedure itself! Yous ay you have laxatives though, so at least you can do that in the comfort of your own home.
Try not to worry - as for the results - they found nothing, and it was IBS, the best thing I found to almost cure this, was having food allergy testing. Told me to avoid bananas and mushrooms, and it has almost done the trick!
You could try getting this done in the meantime, before your appointment - it only cost £30. I also then took a course of acidopholus to settle the flora and fauna in the tubes! (the same stuff there is in those probiotic drinks, but was told they are useless and don't actually do anything, something like only a 100th of the bacteria in those compared to an acidopholis pib¦b¦ll)
Before I had this and a bowel xray with a chalky drink (can't remember what that was called) - I was so scared I was dying, had bowel cancer etc - I went to casualty, the docs lots of times, I remember the causalty doc said to me, if you are in pain like this (doubled over), there is no way it will be anything sinister without you having noticed other bad symptoms first.... I kept that in my head, it sorta worked!
PM me if you need to xx