Since I was born i have had food intolerances, but as I have been growing up (I am 17 by the way), and especially in the last couple of years, they have been getting increasingly worse. Last year when flying to canada, i ended up in an oxygen mask, and in april of this year, i was taken to hospital for a shot. I have been extremely careful with what i eat, but it keeps getting worse and i am becoming intolerant of more foods. My reactions are also worsening, and even if i have a small bite of something, i get a huge reaction (whereas a year ago i would have no reaction). My immune system just seems to be getting worse and worse.
What could be causing this? and are there any solution?