My mother got gall bladder removed by surgery due to stone around 20 years back. Since then she had frequent gastric issues which caused her headaches whenever she used to eat something that is not easier to digest which used to get cured if belched or belched during vomit . Past two three she is facing abdominal pain in the upper part (epigastric region) and she is fearful to go with endoscopy if suggested by a doctor. What are the steps she should follow ?