Hello and Welcome to ‘Ask A Doctor’ service.
I have reviewed your query and here is my advice.
With these many painkillers that you have taken, it is possible that you might be having a drug induced gastritis
Take some antiacids such as ranitidine
. This will help in reducing your gastritis.
Hope I have answered your query. Let me know if I can assist you further.
Dr. Srikanth Reddy