please help

[jonny2121]

im 21 years od and i had unprotected sex with a girl last week. like 3 days later i noticed a group of little red bumps on the shaft of my penis. it was about 20-30 of them on the right side of my shaft. they didnt itch or burn. then when i pulled back the foreskin i noticed two red bumps slightly larger on either side of where the foreskin meets the penis. they also dont burn. the next day they seemed i rubed them and it seemed as though the skin was peeling off of them. i washed the area with medicated selsum blue shampoo and after a couple days the ones on my shaft started to dry and pretty much went away. the two bumps under my foreskin on the head of my penis are still there.none of these bumps have bothered me unless i irritate them. im just really worried on what it could be i have an appointment to a std clinic in two weeks but i really want to know what it could be because it is really scaring my.