If a patient presents with symptoms of cardiac discomfort such as chest tightness and chest pain, accompanied by nausea and vomiting, it is important to rule out whether an acute inferior wall myocardial infarction has occurred. In some patients, it may be a simple gastrointestinal cold that triggers a lack of blood supply to the heart muscle and symptoms of cardiac discomfort, as well as vomiting. In some patients, it may be a cardiac neurosis, or a disturbance in the regulation of vegetative nerve function. Patients are advised to clarify whether it is an acute cardiovascular emergency. Patients are advised to have ECG and cardiac enzyme examination first, and if necessary, chest X-ray, cardiac ultrasound, blood routine and serum ion can be done jointly to help further clarify the diagnosis. If myocardial ischemia exists, patients are advised to take oral medications such as metoprolol and isosorbide mononitrate, and vomiting can be relieved with oral gastrofacial.