I used to be able to eat two apples a day with no issues, then for no reason things changed. Stomach pains.. bad ones anytime I ate an apple. I just am no longer able to digest them raw. A year or so later, broccoli, and carrots joined the list. There is a whole list of foods now that no longer can be eaten. it might be an issue with the rawness.. try maybe baking an apple or trying applesauce. Not the same, I know.
It's a drag getting old!