Scary when that shit happens.
For less than $200 you make a new email address, then sign up for stdcheck.com to get a full panel of STD tests, and you are then given a variety of places to go to get the test done I went to Quest Diagnostics), using whatever name you signed up. Don't need to show any ID. Pre pay with a pre paid credit card on line so no need to pay at the lab.
Go and get the tests
They email the results in a few days.
I did this a few weeks ago (all negative thank God).
Then you don't have to worry about whether you are carrying, or worry about giving something to some girl, and then the hundreds of guys she is seeing, and the dozens of girls each of the guys is seeing, and then each girl sees hundreds of guys, and then each of the guys sees a couple dozen girls, who then see a couple hundred guys. Well, you get the picture.
Be safe out there.