I am 18 and have masturbated since I was 13 but today it seems to have left the head of my penis with 3 small dots close together that are sore, they are flat and not swollen so I believe them to be the same thing but three points of irritation. I had un protected sex with a girl about 4 months and ago and have been urine tested twice my first results where negative and my second have yet to return but I am unsure if these will be related as the sore patches only appeared 5 minutes after masturbating today and is not causing slight pain. Let me know what you think?