Hello dear
Warm  welcome to Healthcaremagic.com
I have evaluated your query in details  .
*  These symptoms  are  in relation with intestine infection through some
    sort  of  bacteria or  virus  .
*  That  is  the  reason why conventional acid  remedies  are  not  working .
*  Guidelines  for  better  outcome
-  Consult your family doctor and get basic laboratory  tests  for  complete
    blood  counts  and  serum 
widal  test .
-   Till then  continue  anti  acid  measures  with dietary  precautions  to
     consider  soft , light diet with avoidance  of  all oily , spicy , non veg .
Wishing you fine recovery .
Feel free to ask any further  queries .
Regards  .