Hi, I am asking this question on behalf of my mother who is 72 years of age. She has no other health issues of any significance. Her heart (as confirmed in an Angio) is good, no diabetes, her BP is normal. She has been told after an endoscopy that her food pipe is narrowing. She starts burping heavily after a meal and this continues for a while. She has been advised to eat slowly and has been prescribed some acid suppressors. Even though she has received a clean bill of health, she is paranoid about this. Is this a major concern? She was taking a teaspoon of apple cider vinegar before her meal and this seemed to give her great relief from her symptoms. However, she was advised by someone that Apple Cider Vinegar may cause other health problems and must be stopped and she did. Any advise would be greatly appreciated.