"Leave me alone!" she screamed at the top of her lungs. I walked away from her but she followed me and continued to scream, "Get back here," she grabbed onto my arm and pulled on it... "I said, get back here!"

I wiggled out of her grasp and locked myself in the bathroom while telling her that I needed to go pee. She pounded on the locked door, demanding that I open it. She has been screaming and flailing and yelling nonsense at me for over an hour. While she's having these fits, her eyes glaze over and there's no way of talking to her or getting through to her. I felt broken. Where did my sweet little girl go? What is wrong with her? What is wrong with me? This must be MY fault! My four year old has been having these fits on a daily basis for a few months now... what is going on?

I wracked my brain and finally had an epiphany. That evening I told my husband my observations; within an hour of my daughter eating wheat, she would have a temper tantrum....

http://www.thedeliberatemom.com/2012/08/no-wheat.html