Food Safety Report: Good Times Burgers & Frozen Custard, Centerplace Drive, Greeley, CO, USA 1 year ago • details 41 Comments Comment Ate a mushroom burger. Horrible stomach cramps diarrhea for days. Suspected food poisoning. Symptoms: Diarrhea, Nausea, Fever, Stomach Pain, Cramps, Chills Suspected source: MUSHROOM BURGER Onset: 4 to 12 hours Duration: Several days