Food Safety Report: Chipotle Mexican Grill, U.S. 6, Portage, IN, USA 1 year ago • details 24 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Fever, Stomach Pain, Cramps, Headache Suspected source: Peppers and onions or barbacoa Onset: 12 to 24 hours Onset: 4 to 12 hours Duration: Several days