Food Safety Report: Long John Silver's, Oak St, Conway, AR, USA 1 year ago • details 40 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Chills, Headache Suspected source: Salmon Tacos Onset: 1 to 2 days Duration: 12 to 24 hours Sick: Me