Children’s dizziness, fatigue and vomiting are considered to be caused by acute upper respiratory tract infection, viral encephalitis, food poisoning and other diseases. 1. Acute upper respiratory tract infection: mostly caused by rhinovirus, influenza virus and other viruses in the upper respiratory tract, but may also be caused by bacteria and other pathogens. After the onset of the disease, children can appear nasal congestion, runny nose, sneezing and other symptoms, the more serious, there will be fever, dizziness, fatigue, tiredness, vomiting and other phenomena. 2. Viral encephalitis: mostly caused by viral and bacterial infections, after the disease, children will have fever, fatigue and weakness, and due to increased intracranial pressure, dizziness, nausea, vomiting, convulsions and other symptoms. 3. Food poisoning: If you eat toxic food or food contaminated by bacteria and other toxins, it can lead to food poisoning, abdominal pain, vomiting, dizziness, fatigue and other symptoms. Children dizziness and fatigue want to vomit, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.