I am 18 and I am a guy that has black hair. But I have these platinum hair growing here and there and it has begant o start growing more but whatis wierd is that it isn't always grey sometimes when I pull it out it is black at the root and platinum on the top and it just varies adn some of them look like a zebra I don't know what this is but is ne one does please fill me in asap thnxs...