Food Safety Report: Pancheros Mexican Grill, Crossroads Boulevard, Waterloo, Iowa, USA 1 year ago • details 17 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Headache Suspected source: there Onset: 6 hours Duration: 12 hours Sick: 1 Additional information: sh*t water and vomited water