Yes it could be peptic ulcer disease or gall stone disease or could be pancreatitis also.
You should get a serum amylase and lipase along with USG - Whole Abdomen
Follow a few simple advice
Avoid fatty and spicy food
Avoid smoking and alcohol if you do
Take smaller meals
Some form of exercise daily for half hour
Don't lie down or sleep immediately after meals
Visit a gastroenterologist for medications
**For complete evaluation and treatment, Kindly visit the doctor in person with all available reports.
*This is just an preliminary opinion not to be used for medico-legal purpose .
Dr Sandeep K Jha
Gastrointestinal and
Liver Transplant Surgeon
MBBS, MS(Gen.Surgery), FMAS+DMAS
DNB(Surgical Gastroenterology)
+91-99999-84373