Gastric Trouble. Gastric issue. this is!

I would be owe to the doctor who can cure my Mother's gastric issue. This is regarding my Mother's Gastric trouble. She has been suffering from Severe gas trouble from 3-4 years. Its impacted our whole family happiness. We have consulted many doctors. but its futile. Every one checks ECG, some other tests and says nothing to be worried. Its a simple gastric issue. But my Mother feels very uncomfortable with this. Whenever we go to see a any new doctor, that medicines will not suite her. She says feeling weird,nerve pain etc after using those tablets. We are almost fedup seeing new doctors. She neither eats properly nor be happy because of this gastric issue. Whenever she eats food, instantly continuous burping starts. It continues for a while. Sometimes she reports heart shaking. She is afraid of taking up new medicines. Desperately waiting for any doctor who can help us. Finally posting here, awaiting for a doctor who can cure this !! Thank You. 94xxxxxx23 , Aman