I tried to pee this morning and it came with a stinging pain as well as some difficulty. I noticed a small white substance on the tip of my penis, but after i inspected it I didn't see anymore. A while after that I was masturbating and noticed more of that same white substance coming out with my precum. My penis still hurt and when i squeezed my penis to get more precum out, it came with more of the same white substance in it. What makes this difficult to find anything about is that I have never had sex before in my life, however I do masturbate on a near-daily basis. My age range is 20-25, should I be worrying?