A 40 year-old female presents to the office with the chief complaint of diarrhea. She has been having recurrent episodes of abdominal pain, diarrhea, and rectal bleeding. She has lost 9 pounds in the last month. She takes no medications, but is allergic to penicillin. She describes her life as stressful, but manageable. The physical exam reveals a pale middle- aged female in no acute distress. Her weight is 140 pounds (down from 154 at her last visit over a year ago), blood pressure of 94/60 sitting and 86/50 standing, heart rate of 96 and regular without postural changes, respiratory rate of 18, and O2 saturation 99%. Further physical examination reveals