Food Safety Report: Sonic Drive-In, 5938 Cliffdale Road, Fayetteville, NC, USA 1 year ago • details 24 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Stomach Pain, Cramps, Headache Suspected source: soft pretzel at sonic Onset: Less than 4 hours Duration: 12 to 24 hours Additional information: I will never order a soft pretzel again