Food Safety Report: McDonald's, Avenida Pico, San Clemente, CA, USA 1 year ago • details 29 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Chills Suspected source: McFlurry Onset: 4 to 12 hours Duration: 4 to 12 hours Sick: Me