Food Safety Report: Potbelly, Washtenaw Avenue, Ann Arbor, MI, USA 1 year ago • details 40 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain Suspected source: Sandwich Onset: 4 to 12 hours Duration: 12 to 24 hours Additional information: We got grilled chicken sandwiches, and… See more