I get tested every summer, even though I haven't had sex in a year.
It's always a good idea ... the tests won't be accurate if you've had sex in the last six months, though.
I feel good knowing that if I were to get married, I'd be able to look my fiance in the eye and say I've been tested, and that all my tests came back negative.
Good for you for getting tested!! You'll be glad you did, no matter what. Life's always better to deal with head-on. I've known people who have STD's and just act like they don't, still sleeping around and stuff. NOT COOL. It's always better to realize what's happening, get treatment, and tell your partners if you're going to get down & dirty with 'em.
You'll probably be fine, though. Good luck.