Patient: My daughter is 17 months old. For the past several months she has been vomiting at least once a day, every day. I have talked to her pediatrician about this but he seems to think that it is ok. I have tried changing her diet, but it didn’t help the situation at all. She will be eating or playing and suddenly just puke. A lot. Then, she will return to eating or playing as if nothing happened. Any idea on what this could be?