My girlfriend is vomiting after eating certain kind of food items, particularly chocolates, some milk items, wheat and alcohol. This started around a year back. She had all types of tests done to check if she's allergic to gluten or if she should follow complete vegan diet, all the tests came negative. She had endoscopy twice during the course of last two years but that didn't show up anything either. She's able to eat meat products without any issues.
She's following a very strict diet from sometime and that's helping but as soon as she eats some of the above mentioned things, she throws up. I'd really appreciate if anyone could provide any help or know someone who faced similar issues.