Food Safety Report: Schlotzsky's, 1316 North Glenstone Avenue, Springfield, MO, USA 3 weeks ago • details Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps Suspected source: Schlotzkeys Potato Soup Onset: 12 to 24 hours Duration: 4 to 12 hours Sick: Me