My 16 yo daughter has been involuntary throwing up every thing she consumes for the past 3 months. Almost as soon as she eats and continues until her stomach has nothing left . She has had all tests possible with a gastroenterologist, including barium swallow , gastroscopy , ultrasound , and blood tests and been in hospital where they cannot help . They decided it was due to anxiety , so we sought therapy for her Where they pointed out her ADD was worse than we thought . ( never was treated ) , though said she does not have an eating disorder , but maybe she has conversion disorder . They directed us to a psychiatrist , who put her case forward to a meeting of 10 psychiatrists who feel it does it add up . They decided she should try Xanax to treat the anxiety , as if that was the cause , the vomiting may stop or possibly be less often . Then they tried another anxiety drug but both didn’t work . They are convinced there is something physical that has been missed . Currently she has been given an anti depressant mirtizapine , which has a connection in helping to stop vomiting . She is trying this for a week at least , but so far after 3 days she is not feeling great and the vomiting continues . It seems she is a medical mystery . Can anyone help or suggest what to do ?