Food Safety Report: Phi Phi Islands, Mueang Krabi District, Krabi, Thailand 1 year ago • details 11 Suspected food poisoning. Symptoms: Diarrhoea, Nausea, Vomiting, Fever, Headaches Suspected source: Crab shrimp Onset: Less than 4 hours Duration: 4 to 12 hours Additional information: Food poisoning after eating out