Fever and stomach pain and bloating is considered to be caused by acute gastritis, gastrointestinal flu and heat stroke. 1. Acute gastritis: Acute gastroenteritis is more commonly caused by unclean diets, and patients often experience nausea and vomiting, stomach pain and bloating, as well as fever. Helicobacter pylori infection, stress and other causes can also cause acute gastritis, fever, stomach pain and bloating symptoms. 2. Gastrointestinal cold: It is usually an upper respiratory tract infection caused by Coxsackie virus, and can also be accompanied by bacterial infection. The main manifestations are nausea, vomiting, fever, stomach pain, bloating, diarrhea and other symptoms, that is, in addition to colds and other respiratory symptoms, there are gastrointestinal reactions. 3. Heatstroke: In heatstroke, nausea and vomiting, dizziness, abdominal pain, bloating, diarrhea, fever, and even convulsions may occur. It can also be stimulated by excessive vomiting, leading to gastrointestinal spasms, resulting in the manifestation of stomach pain. Patients with symptoms of fever stomach pain and bloating need to go to the hospital as soon as possible for relevant examinations to identify the cause of the disease and then treat it.