question: Yesterday, I had a wet dream, and for some reason I flexed the muscle that you would when you're trying to stop yourself from peeing, and I stopped the sperm from coming out. I later read that that could be very harmful, and I've done it more than a few times (only during wet dreams, not while masturbating). That whole day I couldn't seem to have a proper erection, and when I did, it would go away in a few seconds. Is there anything wrong with me? I think the problem is I was scared that there could be something wrong down there so I couldn't have the erection, but I'm not sure that's the case. Also, I have a slight discomfort in my left testicle. It feels like it's trying to push up into my body a little. Please help!