I had a lookie down the throat with that nose tube. It wasn't bad at all. They numb your nose and throat with some kind of spray. After that I had an endoscopy, again not bad as they put you in a twilight kind of sleep. neither one gave me any trouble. The first swallow test however where you drink some awful stuff and then take pictures, now that was icky. I didn't hold it down and gagged. Rather have the tube in my nose than that!!!! Hope it all works out. Try not to worry. ginnie