Hi, my mother , for past 3 years, is having trouble digesting foods like green leafs , beans,carrots , tomato etc. Whenever she eats fruits like apple she gets cold, eating banana causes headache. Post eating these foods she throws up. Therefore, She now basically eats dal , rasam which are basic foods. What is the issue please and how can this be addressed as I am worried that she is not getting the nutrients she needs as she has to avoid most of the foods. The doctors gave medicine which helped in generating burps but she cannot keep having medicines through out. Please suggest.