Getting straight to the point, I had protected intercourse (used a lubricated condom) with a woman almost 2 weeks ago. I observed that after sex, there was a little bit of blood coming out of a spot on my interior foreskin (not on the head, but on the interior of my foreskin, retracted). It's been a while and beggining from yesterday, I have observed that I have a little red spot on my interior foreskin (retracted, again). Today, almost half of my rectracted foreskin got a bit red and swollen, with some red spots on it. Those parts have little red spots that look like open wounds. They hurt if they are touched or moved or if they get in contact with something (like urine for example, it hurts when I urinate but it's not the process or the tip that hurts, it's the retracted foreskin that stings a bit when urine touches it). Also, I have a little bit of a yellow discharge. When my foreskin isn't retracted, I can see that a bit of my prepuce is higher than the other part, because the foreskin is swollen. In addition, retracting the foreskin and the vice versa is a little bit harder now, but almost painless.
What do you think ? Is it a STD ? What should I currently do ? I need advice, please.