Food Safety Report: In-N-Out Burger, 2600 Stearns St, Simi Valley, CA 93063, United States 2 years ago • details 9 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Chills Suspected source: I believe it was in n outs food but I’m not sure Onset: Less than 4 hours Duration:… See more