I'm a 17 year old Caucasian male with a bit of a problem. Today, I came home and went to the restroom to urinate. I did so, stopped, and I assumed that I was 'empty'. Then there a sharp stinging pain on the tip of the penis (Pain scale of 1-10: 6), which occasionally happens to me when I stop urinating even though there's still some urine left. Usually, continuing to try to urinate gets rid of the extra urine and the pain passes immediately. This time, however, the pain only intensified (Pain scale of 1-10: 8) and only a few drops of a clear urine with clumps of some white tinted matter came out. I stopped trying to urinate and the pain gradually went away over the course of about five minutes, leaving a dull burning pain at the tip instead (Pain scale of 1-10: 4) , which flares up at seemingly random intervals. I've tried twice more to urinate, and while a stream of clear urine comes out each time, it ceases after only a second and the pain intensifies again. It's currently a weak, burning sensation, that's slowly fading away but flaring up occasionally (Pain scale of 1-10: 1). So what is it? Or what could it be? On the off-chance that trying to urinate again would be a bad thing, I'm not going to the restroom again until I have an idea of what this is.
Medical information:
Currently taking Adderall XR and a once-a-day vitamin. No prior surgeries. No STD's. No history of problems with urination. Diagnosed with Neurocardiogenic Syncope a year ago, self-diagnosed with hypermobility nine years ago.