Food Safety Report: Texas Roadhouse, South Interstate 35 Frontage Road, Austin, TX, USA 2 years ago • details 24 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Headache Suspected source: Shrimp or salad Onset: Less than 4 hours Duration: 12 to 24 hours Sick: Me