I've had lots and they are fine. It is very dignified considering, and way less stressful than a smear. You lie on your side with your knees bent, and they give you some sedation. You feel nice and woozy and they put the camera in- I didn't even feel it. I watched it on the TV screen cos it was fascinating, but you don't have to! They take tiny biopsies as they go round, which you can't feel. There are hardly any nerve endings up there. Honestly, it is not scary or humiliating at all. You are covered up with a gown and blankets. As for the food, it drove me mad, all that white stuff. Maybe google some recipies or ask a good cook what you could make to make it more palatable. It's only for a short time and then you take the laxatives, which also are nice and easy, or were in my experience. Good luck!