Food Safety Report: Lucky Charms, Walmart Supercenter, 2751 Beaver Run Boulevard, Surfside Beach, SC, USA 11 months ago • details 202 Suspected food poisoning. Symptoms: Diarrhea, Stomach Pain, Cramps Suspected source: Lucky Charms Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: Me Additional information: Keep having stomach pain followed by diarrhea.