You may have crohn's if: You've been to the doctors so many times that when a doctor forgets to do part of a standard exam, you notice it before he does.
"Hey you guys forgot to weigh me. Don't forget to take my temperature!"
Also, you may have crohn's if: Your doctor's assistants are reading your chart and ask "are you really on all these medicines right now?" or if the [Current Medications] section they hand-write doesn't have enough blank lines for all your medicines to fit.