hi i had gone through your query and understand your concerns. i would come up with the possibility of ACID PEPTIC DISEASE
may be the cause for your sufferings.
-eating fatty,spicy,junk food
-sometimes suppressed strong feelings like anger,worry etc caused the inflammations they will not get better until these feelings have come out into the open.
-taking pain killers
are some possible causes
I hope this is helpful for you, thank you