Veins in Legs help please?

Hi Everyone. I am 16 years old, quite skinny, and pale. Anyways, all of a sudden, out of the blue, I noticed that the veins in my legs were very blue, and very noticeable. They read like a road map! They aren't varicose veins though. Any suggestions on how to get rid of them? Maybe I should also mention that about 2 months ago I started drinking a lot more water than usual, but I have stopped that now. Thanks. Oh, and I know that they haven't always been there, they just suddenly appeared.