Food Safety Report: Slapfish, William Hilton Parkway, Hilton Head Island, SC, USA 2 years ago • details 10 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Vomiting, Stomach Pain, Headache Suspected source: Food Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: 2 people Additional information: We both shared fries with their cream sauce