Hello,
Welcome to Healthcaremagic.
I have gone through your query and understand your concern.
Most of the people fully recover from
dengue fever, although the weakness and
fatigue may last for several weeks.
It may some more weeks to recover your normal health.
Because it is a life threatening infection.
Thank god for not being done any worst things.
It is very usual to have
gastritis and other abdominal issues after recovery from fever.
It is most commonly by the Heavy dose pain killers and as well as by
dehydration.
Take some antacids,
proton pump inhibitors like pantaprazole just 20 minutes before food for a week.
My advise is to drink plenty of fluids, eat green vegetables and fruits, take rest for two more weeks and gain health before going to work.
Hope this helps.
Please reply for further queries.
Wishing you good health.