Dairy caused my fingers to be swollen the next morning, soy gave me a stomachache and headache, and non-gluten grains gave me diarrhea. Oh and when I had sugar for the first time after my reintro (without eating a meal before hand), I WANTED SUGAR SO BAAAAD. It was scary.
Has anyone done a reintroduction where you reintro for a whole week or month, not just a day? Sometimes I wonder if the reactions are just because you're body hasn't had that food for 30+ days. It would also be interesting (and probably sucky) to see what other reactions to the foods would develop. For me, maybe dairy would cause my fingers to swell the following day, but after a month of eating (even grass-fed, organic) dairy, it would cause depression or something else.