Food Safety Report: Costco Wembley, Second Way, Wembley, UK 2 years ago • details 25 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Cramps, Headache Suspected source: Costco Curry Onset: 4 to 12 hours Duration: 12 to 24 hours