Food Safety Report: Sonic Drive-In, 23700 Southwest Fwy, Rosenberg, TX 77471, USA 5 months ago • details 10 Suspected food poisoning. Symptoms: Diarrhea, Stomach Pain, Cramps Suspected source: Vanilla Milkshake Onset: Less than 4 hours Duration: Less than 4 hours Sick: Me Additional information: I have lactose intolerance.