See photo (which is enlarged so probably looks worse than it is).
Noticed it a couple of months ago when painting my toes but could've been there longer I guess. Removed the polish the other day and realised it was still there. Not sure if it's got bigger or moved as the original glance was so brief. Don't recall hurting it although I guess shoes could've rubbed.
I've of course googled and come up with melanoma! From what I've read, melanoma is usually a thin vertical line (this is a horizontal blob/spot) and usually affects big toes, thumbs or index finger, not the pinkies!
Should I be bothering the GP with this? Will obviously monitor and see if it shows signs of growing out before I do. However, that could be a long time as toenails grow VERY slowly.
Grateful for any thoughts.