I have regular check ups in my home town in Spain. There are free clinics where u can take test anonymously without having to go to your regular doctor. They do a wide extend of tests, also your throat for papiloma virus that you can catch doing OWO. They give you a card stamped with the date that you did your last check up. You can always carry this card and can show it to punters if they want to know if you get std checks.
Jessie