Food Safety Report: In-N-Out Burger, 15575 Hesperian Boulevard, San Leandro, CA, USA 2 years ago • details 22 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Chills Suspected source: dinner there around 7pm. Animal style fries, cheese burger with onion, root beer. Onset: Less than 4 hours Duration: Less than 4 hours