I'm Dr Chaithanya attending you
These symptoms go in favour of gastric ulcer.
Have you undergone a upper GI Endoscopy along with these tests, if not please undergo upper GI Endoscopy once, this can tell us what is there in the stomach-Gastriris, Gastric ulcer or Hiatus hernia
Now, liver function tests, kidney functions and Echo are mandatory to rule out good bodily function, especially liver function test as liver can get dysfunction due to alcohol consumptions for long term. These are all blood tests.
I suggest you to minimize smoking and alcohol
Try with pantop 40mg daily once in the morning before food for 10 days and stop
Hope this helps
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