Hi , when i pull down my foreskin, on the top side (the side closest to my stomach) there is this thicker what looks like a vein that go's from way below inside my foreskin in a line towards my my penis head. it appeared out of nowhere a few weeks ago. Its thicker than other veins and you can actualy see and feel it on the surface of my penis skin, its white/red colored, a few cm long. how did it get there?