text_1: 34-year-old female, history of intermittent abdominal pain followed by diarrheal stool, followed by nausea, followed by vomiting.  This occurs about 1 time per month or every other month but no menstrual pattern.  Barium swallow, upper gastrointestinal series, gall bladder ultrasound all negative.  What is causing these symptoms?
text_2: Is this rash shingles or staphylococcal impetigo?