Food Safety Report: McDonald's, U.S. 22, Scotch Plains, NJ, USA 2 years ago • details 3 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Chills, Headache Suspected source: Shamrock shake Onset: 4 to 12 hours Duration: Several days Sick: Me