Your original doctor is a good doctor
and the doze of
zithromax you took was a pre-caution,
and it took care of any bacteria that the tests may have been missed.
"So what an i do now?" Though this is an STD forum and does not cover HIV issues. I will say, get a HIV test the soonest one at 6 weeks it will be very reliable, for a conclusive test you will need one after the 3 month mark. Post further HIV questions on HIV community forum.