Food Safety Report: Hungry Jack's Burgers South Coffs Harbour, Pacific Highway, Coffs Harbour NSW, Australia 9 months ago • details 5 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps Suspected source: Hungry jacks burgers Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: 2 people