Hello
Worm infestation , enlargement of liver,
gas problem , these symptoms ,nothing yield any thing .
As there are so many reasons of enlargement of liver as worm impacted in liver , cirrhosis of liver , secondaries in liver ,
liver tumor ,
hydatid cyst , abscess .
I recommend you get in M R I of liver and also
liver biopsy for confirmation for liver disease . Hyper acidity may be the main cause of gas problem as this may be due to tension , anxiety . Take some antacid but if gas formation is severe , she may need drugs like
proton pump inhibitors like pantoloc-D once or twice in day .
In worm infestation I usually prescribe albendazole+ ivermectine in combination pack . One tablet / week for 4 weeks ( total 4 tablets in four weeks.).
In my opinion consult a gsatro-enterologist and get his opinion.
Hope this information will be helpful for you.
Good luck