<s>[INST] My six year old has been experiencing nausea after eating - on a regular basis for about four weeks. At one point we took her to the doctor for stomach flu but it has continued. She will be fine all day and then suddenly feel nauseated after eating. [/INST] Hi, I have gone through your question and I understand your concerns but please get a stool analysis for h.pylori infection as it can cause such symptoms. Hope I have answered your query. Let me know if I can assist you further. </s>