Food Safety Report: Krystal, E Morris Blvd, Morristown, TN, USA 1 year ago • details 10 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Headache Suspected source: Krystals Onset: Less than 4 hours Duration: 12 to 24 hours Sick: 2 people