My daughter has a few nails, on different hands, that show regrowth. The nail on top of the new one can almost, but not quite be lifted off.. Both parts are attached, but you can see and feel where the old one is coming out and will come off. Being that they are on adifferent hands, and are happening in different stages, i dont believe that she has banged them. She is just over 2 years old. Please help. Should I be concerned?