: I don't get to eat anything substantive tomorrow. I've a GI procedure Tuesday morning, and I have an empty stomach and have fasted for at 36 hours. It's reminiscent of getting an ERCP or a colonoscopy. You have to starve for a day. That said, thank goodness my procedure isn't at 4 PM like it was last time. Being hungry for two days blows worse than being hungry for just one. (I do have chicken broth and ginger ale, though, and so I've got that going for me, at least until 12 AM EST on 9/11.