Hello, I've been having some kind of an "issue" with my penis lately. I've spotted that my veins have become more prominent, especially the one near the head on the back of the penis (by back I'm referring to when the penis is perpendicular to the body, from the legs' side, sorry can't really explain it otherwise since I'm not a native english speaker and I don't know the terminology, pretty sure it's the vein near the top of the shaft). So a little back story, I'm a 18 year old guy that masturbated daily (sometimes even twice a day, it depends) and I've been trying to slow down the time to ejaculation from time to time (which I read, might be the cause of the issue to begin with). I had stopped masturbating for about a week (last week), maybe didit only once or twice for these 2 past weeks, but the vein on the back still seems very prominent. I haven't experienced any pain whatsoever from when I first noticed the vein might be a little too prominent (not as I remember it to be, or I would've noticed sooner anyway, that's not something that can be overlooked easily) and no erection problems as well. I've no idea what it could be.