Hello.my Mother Is Suffering From Loose Motion Problem From Last

Hello.my mother is suffering from loose motion problem from last 2 year.she is operated bcoz of gall bladder stone,doctor removed her gall bladder.after that she is having problem of extreme gas , heartburn , loose motions in morning when she wake up n she passed stool 4 to 5 time continue after breakfast.bcoz of this she is sufferring from low immune system n sometimes she feel fear at night.