I am starting to feel very slight burning sensation after urination?

Hello first time here and I freaking out.
I need your help please.
So 3 weeks ago I went to a brothel and received Oral sex (without condom) from a female nothing else.
2 weeks later I am starting to feel very slight burning sensation after Urination (not during)
And the burning sensation goes away quick but there is still some very slight irritation and after a while it goes away too. There are no other symptoms…this is happening for the past 5 days.
But again when I urinate the above happens again these symptoms are not severe but Im getting worried.

Is there any possibility I have gonorrhea or chlamydia?