Food Safety Report: Jimmy John's, Pontiac Trail, South Lyon, MI, USA 1 year ago • details 4 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Stomach Pain, Cramps Suspected source: Jimmy Johns Onset: 4 to 12 hours Duration: Several days Sick: Me Additional information: Ordered a sandwich with lettuce, onion, tomatoes, peppers and pickles