good luck with your test! I've had it done numerous times, and most of the time it's not that bad. The prep is worst, but with the pill-preps even that's not too bad. Just make sure to drink lots and lots both to keep your blood sugar going and to keep somewhat hydrated. And another thing I've found very useful is to make sure to eat live yogurt for a few days after to replace the lost good bacteria from your guts after such a thorough cleaning. As for the procedure itself, in the US they tend to drug you up so you won't be very alert or remember much. In Norway they give you no drugs. The first time I had it done, I was in no pain so I just amused myself by watching the screen. As a biologist I found it really cool to see what a real instestine looks like rather than just diagrams in a text book.