Food Safety Report: Stonefire Grill, Winnetka Avenue, Los Angeles, CA, USA 2 years ago • details 30 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Chills Suspected source: ate at stonefire grill Onset: 4 to 12 hours Duration: 4 to 12 hours Sick: 2 people