Hello,
Your symptoms are suggestive of dyspepsia.It is due to gastroesophageal reflux disease (GERD),gastritis or
peptic ulcer disease.It is usually after eating a heavy fatty meal and sedantry lifestyle. It can also be caused by drinking too much alcohol, prolonged use of nonsteroidal anti-inflammatory drugs (NSAIDs) such as aspirin or ibuprofen, or infection with bacteria such as Helicobacter pylori (H. pylori).
Eat small nutritious meals at frequent intervals instead of a heavy single meal.