I am 22 and have been eating gluten free since August of 2012. My reactions to gluten have gotten slightly more severe since I stopped eatting it. I have had severe cramping and other gastrointestional upsets from gluten my whole life (Though I didn't know what was causing it untill I was 21...). Now in addition to that my throat swells when I eat it The pain lasts an hour or so and I have to take an antihistamine for the throat swelling. I am sorry the reaction lasts so long for you! I know how bad that pain can be!