Bloating, dizziness and weakness are often caused by chronic gastroenteritis, food poisoning and indigestion. 1. Chronic gastroenteritis: chronic gastroenteritis usually refers to chronic inflammation of the mucosa of the gastrointestinal tract, patients often appear epigastric pain, abdominal distension, fullness and bloating after meals and other symptoms, while some patients will also be accompanied by symptoms such as lethargy and fatigue. 2. Food poisoning: food poisoning is often caused by patients consuming unclean food such as poisonous mushrooms, etc. It is divided into gastrointestinal food poisoning and neurological food poisoning, the former symptoms are mainly for abdominal distension and diarrhea, the latter’s main symptoms are dizziness and fatigue. 3. Indigestion: Indigestion caused by various factors can also lead to accumulation of food in the stomach and intestines, thus causing symptoms of bloating. At the same time, indigestion makes the gastrointestinal tract’s ability to digest and absorb food weakened, and the lack of energy acquisition leads to dizziness and weakness. Once the symptoms of bloating and dizziness occur, it is recommended to go to the hospital in time to find out the specific cause and then carry out effective treatment.