Thanks for your query.
It appear to be a case of post sex infection of urinary tract
or your genitalia .So get urine examination done to find the cause. Possibility of STD
can`t be ruled out if it was an unprotected sex. So there is no harm in consulting the gynec.
‘Hope I have answered your query, I will be available to answer your follow up queries, “Wish you Good Health and trouble free speedy recovery”