Food Safety Report: Popcorn, Vorarlberg, Austria 1 year ago • details 1 Suspected food poisoning. Symptoms: Diarrhea, nausea, vomiting, stomach pain, headache, other: dizziness Suspected source: Popcorn Onset: 4 to 12 hours Duration: Less than 4 hours Sick: Not sure Duration: Less than 4 hours Sick: Not sure