I've noticed sometimes the body can react to what we are eating or drinking. My epiglottis enlarges if the day before I drank soda. There are alot of chemicals in soda that are not the best for the body. As long as I stay away from the soda,my epiglottis doesn't swell. Maybe you can see if taking one item out of your diet for a week or 2 causes it to stop? You could keep trying a different item every 2 weeks or so until you find the culprit.Good luck!