Always appear nausea, vomiting feeling need to consider the following diseases: 1, chronic gastroenteritis, often appear abdominal pain, nausea and other symptoms; 2, food poisoning: mild food poisoning will mostly nausea symptoms; 3, unclean diet: such as roadside stalls and other health conditions are worrying, eat unclean food often appear nausea, and even vomiting symptoms; 4, early pregnancy reaction: young women friends without obvious The symptoms of acid reflux and nausea should be considered in time for pregnancy; 5, chronic pharyngitis: some patients with chronic pharyngitis will have symptoms of nausea; 6, acute myocardial infarction: patients with myocardial infarction, especially lower wall myocardial infarction, often manifest symptoms of gastrointestinal discomfort, nausea, vomiting, must be alert.