Food Safety Report: Jimmy John's, South Custer Road, McKinney, TX, USA 7 months ago • details 11 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Stomach Pain, Cramps, Chills, Headache Suspected source: Jimmy John’s Onset: 4 to 12 hours Duration: 4 to 12 hours Sick: Me Additional information: Na