I have a 10wk old girl who was born with a head of hair. She had a bit of cradle cap which i treated with oil & brushed out the nxt day everythings been fine since but i have noticed that her hair on the top of her head {not bk or sides} has thinned out enough where i can see the scalp more than i could b4. I have noticed when i wash it that i have strands of hair in my palms. the hair isnt coming out in clumps its just thinning. is this normal?