Gastroesophageal Reflux Disease (GERD): This condition is characterized by the backflow of stomach acid into the esophagus, leading to symptoms like burping and stomach pain after meals, especially after consuming large or heavy meals.

Functional Dyspepsia: A common condition where the stomach doesn't function normally, leading to symptoms such as burping, bloating, and stomach pain after eating.
Peptic Ulcer Disease: Ulcers in the stomach or duodenum can cause pain after meals, especially if the ulcer is located in an area that comes into contact with food.
Irritable Bowel Syndrome (IBS): While primarily known for altering bowel habits, IBS can also cause upper gastrointestinal symptoms like bloating and discomfort after eating.

Gastric Cancer: Although rare, gastric cancer can present with nonspecific symptoms like postprandial pain and bloating. It's crucial to consider this diagnosis, especially in high-risk populations or those with alarming symptoms like weight loss or difficulty swallowing.
Pancreatitis: Inflammation of the pancreas can cause severe abdominal pain that may radiate to the back and worsen after eating, particularly fatty foods.
Cholecystitis: Inflammation of the gallbladder, often due to gallstones, can cause right upper quadrant pain after meals, especially fatty ones.

Zollinger-Ellison Syndrome: A rare disorder characterized by excessive production of stomach acid due to a gastrin-producing tumor, leading to severe peptic ulcers and diarrhea.
Eosinophilic Esophagitis: An allergic inflammatory condition of the esophagus that can cause difficulty swallowing, food impaction, and chest pain, potentially related to food allergies.
Gastroparesis: A condition where the stomach takes too long to empty its contents, often causing nausea, vomiting, bloating, and pain after eating, particularly in individuals with diabetes or those who have had certain surgeries.