Food Safety Report: El Comalito (Amherst), West Street, Amherst, MA, USA 6 months ago • details 5 Suspected food poisoning. Symptoms: Stomach Pain, Cramps, Chills, Headache Suspected source: Burrito Onset: Right away Duration: Less than 4 hours Sick: Me. I ate there burrito and I became ill an hour later almost immediately after.