You could be suffering from GERD(Gastroesophageal reflux disease). In simple terms acid reflux.
Needs further evaluation with detailed history and clinical examination.
Need for an Upper GI endoscopy has to be decided based on your clinical findings.
Next Steps
Consult a Medical/Surgical Gastroenterologist
Health Tips
Avoid oily, spicy foods/citrus items/maida/bread/beverages
Space dinner and sleep with atleast 2 hrs gap.
Quit smoking and alcoholism in case doing