Food Safety Report: Tops Pizza Stevenage, Queensway, Stevenage, UK 2 years ago • details 17 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Chills, Headache Suspected source: Pizza Onset: 1 to 2 days Duration: Several days Sick: 2 people