The main causes of bloating and gas (flatulence) and hiccups when people eat less food may be gastrointestinal flora imbalance and gastric dyskinesia. It is recommended to go to the hospital for checkups to identify the cause of the disease and treat the cause when the above symptoms occur. 1. Gastrointestinal flora imbalance: people with gastrointestinal flora imbalance will experience bloating, belching (hiccups) and other uncomfortable symptoms after eating, so they can take some probiotic drugs (such as Lactobacillus acidophilus, etc.) under the guidance of the doctor. 2. Insufficient gastric power: After people eat, because of insufficient gastric power, the digestive function becomes poor, the food accumulates in the stomach, bloating, belching, nausea and other uncomfortable symptoms. It is recommended to take drugs to promote gastric motility (e.g. Mosapride, etc.) and drugs to protect gastric mucosa (e.g. Omeprazole, etc.) reasonably under the guidance of doctors.