hi there! my son has his moment when he won't finish all his milk but he will drink it. a friend of mine, her daughter has problems with milk too. makes her feel sick & bungs her up inside too. she has tried goat's milk, soy milk, rice milk, almond milk & any other type of milk that would still have the calcium in it.
but, if you lil one is getting the calciium from somewhere else then you should be ok. treedaisy sounded like they had some good advice too!! hope some of this helps!