I had unprotected sex with two women in one night at a party, at different times of the night, the sex was really rough, and the next day at night i noticed my penis was swollen. so i thought it was because i did it to hard. next day the swollen was still the same and since I'm not circumcise i pulled my skin to see my head, and it had many red little dots in my around it. I washed the head often, so two days later, my head wasn't really swollen but the red little dots were still there. So because it wasn't swollen and it didn't hurt I masturbated and when i came and my penis was all inflated it felt like it was going to explode. I tried washing it but just putting water on it burned soooooo bad!!!
I'm worried if it is a kind of STD or is something else. I would really appreciate if you could tell me what it is and what should i do about it. thank you