Mom of 2.5 month baby Acidity problem PLZ help :(

Does anything like this documented before "my wife has acidity problem started while she was pregnant " 4 month" now she gave birth to baby and it's been 2.5 months , we have tried all doctors all diets and everything even though for every 5-10 days she has severe acidic problem which shorten her breath? She is struggling so much can someone help.. she mentioned her mom use to have similar acidic issue