Welcome to HCM,
You are having Antral Gastritis
which is associated with burning sensation in upper abdomen.
This gastritis may be caused by infection of H.Pylori and this is treatable with Proton pump
inhibitors like Pantoparazole along with antibiotics in combinations known as Triple therapy.
You should avoid any tobacco,and alcohol and any analgesic
(NSAID) as they can increase the problems.
This can also may be due to autoimmune dis order where some time B12 deficiency may occur which should be tested and treated.
is also one of the cause.
You should complete this Pantocid
Kit treatment then continue with PPI for long time may be 4 to 6 week with consultation of your doctor,I am sure you will improve in few weeks.