Allergy and intolerance are different as you discussed it, immune system react directly to allergy and intolerance is digestive problem.

Moreover, you mentioned a really great problem about baby's problem; allergic to cow's milk due to certain elements in it.
Lastly, I pray for you so that your allergy is cured and you may taste the beautiful and tasty food. I will say that the things you mentioned are also not healthy e.g. snacks, you mentioned you eat bananas instead of it so I will say that bananas are healthy and great for the body rather snacks.

*Best of luck for the content friend.