It is not advisable to lie in bed immediately after eating. You should not eat within two hours before going to bed, and the head of the bed can be raised 15-20 cm when sleeping to reduce the factors of increased intra-abdominal pressure and acid reflux. In addition, visit a hospital for diagnosis and treatment of the primary disease. In the case of inflammatory diseases such as acute gastritis, antibacterial medication can be administered to target the causative organism, antispasmodics can be taken under medical supervision if necessary, and endoscopic treatment and surgery are required for severe cases.