Oh, believe me, after this, I will never do anything unprotected again.
Really worried...no, but like I said there is a chance. But it is always a good idea to test for STD's when having a new partner or if you have casual sex every 6 months to a year or after 1 night stands that are unprotected.
But I encourage you to have protected sex, this will allow you not to worry about things like this anymore.
Well, I did know the guy very well. And I have only been with one other person before this guy (we had only been with each other so I could not have gotten anything from him). But mainly, should I be like really worried?
From oral sex you can get Gonorrhea, herpes and syphilis. It is a low risk for unprotected oral sex but possible. The most common is gonorrhea to be passed and then herpes and syphilis is rare in developed countries.
You can test with a throat swab for gonorrhea, can test at 6 weeks post exposure for syphilis and 4 months for herpes. But over 1/2 the population has herpes so it is possible that you already have it.
the most likely std you may contract is herpes which is more infectious and more common in the US if you are there but this dosnt exlude other stds havng had 3 times unprotected you seem to have a knowledge about stds and still have 3 times unprotected with someone you dont know well :)
the only way to know it test at the appropriate times unless any symptoms develop.