Any idea about what causes nausea from eating grilled foods. It originally started when I ate pizzas from the traditional pizzeria (since childhood). After only one slice nausea and vomiting... but then I discovered that Pizza Hut pan pizza doesn't make me sick. Now, I realize it's foods that come in direct contact with flame and has any charring. I've been sickened from Chipotle, any hand tossed pizza, roasted foods that have burnt or char marks. Any ideas would be appreciated