Sudden dizziness, vomiting, diarrhea may have the following causes: 1, acute gastroenteritis, acute gastroenteritis patients will appear abdominal pain, diarrhea, as well as nausea, vomiting, fever and other symptoms, the patient’s stool is mostly thin stool or watery stool, the number of stools a day can be as many as 5-10 times, due to dehydration and loss of electrolytes, patients can appear dizziness, general weakness and other symptoms. 2, gastrointestinal type of cold, gastrointestinal type The patient can also experience dizziness, vomiting, diarrhea and other symptoms, in addition to gastrointestinal symptoms, the patient can also experience cough, nasal congestion, runny nose and other cold symptoms. 3, acute appendicitis, acute appendicitis patients can also experience acute fever, abdominal pain, diarrhea and other symptoms, and fever can lead to dizziness, headache and nausea The fever can lead to symptoms such as dizziness, headache and nausea, vomiting, etc.