Food Safety Report: Panda Express, North State Highway 78, Wylie, TX, USA 6 months ago • details 24 Suspected food poisoning. Symptoms: Diarrhea, Stomach Pain Suspected source: Not sure Onset: 4 to 12 hours Duration: 4 to 12 hours Sick: Me Additional information: I suspect it was this but I’ve eaten out most of the week so could be something else.