Food Safety Report: LongHorn Steakhouse, Bullsboro Drive, Newnan, GA, USA 9 months ago • details 32 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Chills, Headache Suspected source: Salmon Onset: Less than 4 hours Duration: Several days Additional information: I've been very sick from it