I hope someone can tell me if this is normal: my baby is 16 weeks old, shes colouring very well on the head, she doesnt look bald or anything, its full on the head and body, but now i was brushing her in daylight on the couch by the window and i noticed that her hair on her back is starting to colour too... is it not too early for that yet?? this puzzles me!
i know theres a lot of "coat"experienced ppl on here

any idea ?
Thank you