Food Safety Report: Ocado, M&S, Chantry Lane, Tadcaster, UK 2 years ago • details 1 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Stomach Pain, Cramps, Headache Suspected source: unwashed strawberries Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: Me Additional information: Bought strawberries from here via the Ocado chain.