Std questions. my girl got tested and it was positive. it was the first time for us. does that mean i have it ? i have no symptoms at all. or could i have given it to her?

Possibly: Many types of STDs, including chlamydia and HPV, may not show any symptoms in a person who has the infection. They can easily pass the infection to someone else without knowing it. The best thing to do is to ALWAYS use condoms whenever you have sex. Get tested whenever you have a new partner, but understand that the tests may not be positive when it is early exposure.

Could be: Any combination of the possibilities that you mention. First it would help to know which STD you are referring to. But it's possible to have a STD without any symptoms(men often do) and spread it to someone. It's also possible that your significant other "picked this up" from someone else and could spread it to you likewise. But you may have anything at all too. Get tested to be sure.

STD: If your sexual partner is positive for STD, you should be treated also. It is possible you could be asymptomatic.

It depends: It depends what the test was for and what type of test. If you have no symptoms you still could be harboring an infection and transmitted an STD to your significant other. Alternatively, you could have nothing at all.