Got My Gray Wish

I'm not talking about "my hottie". I'm talking about the hair... (yeah, still thinking about it). I think that hair grows at different speeds -- I don't mean the hair on different parts of my body, but on my head... on top of it). I had blonded my hair a couple months ago, and it has since been growing out. When I trimmed my hair last night, I thought I caught all of the colored parts, but looking in the mirror, I noticed that some of my sidehair is light... lighter than blonde... they were white-ish... and that's all the way down to the roots. And there are some blonde-all-the-way-down hairs on the top-front of my head (all that I could closely see). I'm not sure if I "should" be worried. I kind of think it's cool.

Is my genetics mutating? Will I be getting a super power from this? If so, what could it be?