Food Safety Report: Whataburger, 5900 San Pedro Avenue, San Antonio, TX, USA 1 year ago • details 884 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Chills, Headache Suspected source: whataburger hamburger Onset: Less than 4 hours Duration: 12 to 24 hours Additional information: Ordered through… See more