Bad stomach but always want to eat may be related to excessive gastric acid secretion, hyperthyroidism, diabetes and other factors. The details are as follows: 1. Excessive secretion of gastric acid: If the gastric acid secretion in the stomach is too much, it will accelerate the digestion of food in the stomach, and if the food is digested too quickly, it will be easy to produce a feeling of hunger. 2. Hyperthyroidism: hyperthyroidism will appear in the whole body hypermetabolism, thyroid hormone secretion increases, promote the body protein, carbohydrates, fat metabolism, gastric emptying speed is also accelerated, it will be easy to produce hunger. 3. Diabetes: If diabetic patients with improper blood sugar control, blood sugar will not be able to enter the cell metabolism, and then produce hunger. Always want to eat. The stomach is not good but always want to eat, there may be other reasons, if the symptoms persist, and accompanied by other discomfort, it is recommended to go to the hospital for examination, if necessary, gastroscopy.