My son is 6 and has Asperger's and we believe is also ADHD. He's been on a gluten and caesin free diet for 4 weeks now. It's been fantastic, with dramatically improved behavior. His grandfather let him eat chicken nuggets and he threw up that night. Ever since (5 days ago), he's had diarreha, tummy aches, slept alot, and worst of all insane crazy behavior!! Are these typical symptoms for this situation? How long will this last? Should I take him to the doctor? Does he need supplements? Help- I'm so worried!