Food Safety Report: Jersey Mike's Subs, South Riverfront Drive, Mankato, MN, USA 1 year ago • details 21 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Stomach Pain, Cramps, Headache Suspected source: Jersey mikes Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: Me