Food Safety Report: Costco Wholesale, Katy Freeway, Katy, TX, USA 2 years ago • details 22 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Fever, Stomach Pain, Chills, Headache Suspected source: Pulled pork Onset: 12 to 24 hours Duration: 12 to 24 hours Additional information: Kirkland shredded pork bought 6/30 caused my family food poisoning.