Food Safety Report: El Torito, Riverside Plaza Drive, Riverside, CA, USA 1 year ago • details 65 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Chills, Headache Suspected source: Guacamole Onset: Less than 4 hours Duration: 12 to 24 hours Sick: Me