My niece has been through numerous tests and the doctors all say they never heard of such a thing. They tend to assume that it has something to do with a eating disorder, but I have seen the poor girl mistakenly eat an item with sauce and then spend the next 24 hours vomiting up vile. Sometimes she vomits food that has not digested like an orange slice coming back intact. She has managed to figure out which foods she needs to avoid, no sugar, no milk, she can eat honey and half n half. We are thinking maybe it is a emnzyme condition. Any thoughts on this matter would be appriciated. Have a nice day.