I agree the prep is by far the worst part and I dreaded the whole thing for years lol. I'm not used to any kind of diet or limitations and felt like I was starving to death and then drinking that clear liquid was torture - I had to plug my nose to hide the taste. Then after all that prep they could only do half the test. I wish there was an easier way instead of drinking that awful liquid. I would rather do a liquid diet for a week than drink that stuff. At least you're out for the procedure itself. The toilet will be your best buddy today lol. I hope it's goes well and you're fine.