Food Safety Report: Chipotle Mexican Grill, 2122 Gunbarrel Road, Chattanooga, TN, USA 1 year ago • details 70 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Fever, Stomach Pain, Cramps Suspected source: Their chicken barbacoa bowl Onset: Less than 4 hours Duration: Less than 4 hours