7 weeks ago, I had an unprotected oral sex (fellatio and cunnilingus) with a young girl with unknown status. My penis have touched the outside of her vagina, but very briefly (never penetrated, strictly from the outside). I have a circumstances penis and I did not notice and sores or ulcers on her body.
One week after the encounter, I started to feel some discomfort while peeing, the need of frequent peeing, and noticed a transparent discharge coming from the penis. I went to an STD clinic and they gave me antibiotics for both chlamydia and gonorrhea. The test results came back one week later and it was clear (for HIV, chlamydia and gonorrhea). The discharge and discomfort disappeared.
6 weeks after the encounter, I repeated the HIV, chlamydia and gonorrhea tests and are all negative again.
Asked the Dr. if I should get a Herpes test and he told me that it is too early and anyway blood tests for herpes have high false positive rate that they don't recommend that I get tested unless I show symptoms! is this true? what are my risks and how can I get ease of mind?