Food Safety Report: McDonald's, Lincoln Road, Holdingham, Sleaford, UK 1 year ago • details 9 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Stomach Pain, Cramps Suspected source: Quarter pounder meal Onset: Less than 4 hours Duration: 4 to 12 hours Sick: 2 people Additional information: The onions tasted off and had a weird texture