Hello, according to your description, you may think it is abdominal distension. Stomach bloating may be due to overeating cold or indigestible food, and indigestion is mostly. You can take some detumescence tablets, motilium tablets and gentian soda.

Suggestion:

Eat less cold, spicy and greasy sweets. If it's not serious, you'd better see a doctor for examination and treatment. Drink plenty of water at ordinary times and avoid spicy food.