hi welcome to HCM
-hi i had gone through your query and understand your concerns. i would come up with the possibility of ACID PEPSIC DYSPEPSIA
may be the cause for your sufferings.
possible causes include;
-sometimes the suppressed strong feelings such as worry and anger etc.have caused the inflammations they will not get better until these feelings have come out into the open.
-eating spicy food
-poor general health are some possible causes
I hope this is helpful for you, thank you