If you have trouble swallowing sometimes, or it feels like food or pills get stuck, you may want to go see an allergist to get tested for food allergies. Don't procrastinate it thinking it will go away or is just in your head. If you do that, you'll get be at huge risk for Dysphagia, which is Hell. If you distrust the medical establishment, want concrete results (medical tests have false positives/negatives all the time) or would rather save the money, check out the book "The Elimination Diet" by Tom Malterre and Alissa Segersten.