The data you provided (symptoms starting after sexual intercourse, irritation, burning sensation during urination, foul odour of urine, itching, urge for frequent urination), indicate that possibly you are highly likely experiencing a urinary tract infection (UTI). The UTI might have started as bacterial vaginosis in the first place and then it has probably spread to the bladder.


In most cases the bacteria is transmitted from the sexual partner, but not necessarily. The sexual intercourse (especially the secretions from both the male and the female) might change the vaginal acidity thus changing the regular vaginal flora. From here it is quite easy for the infection to spread to the urinary bladder.


You might want to visit a gynecologist for a vaginal swab and/or pap smear. A urine culture and urinalysis are highly likely to be needed, too.


Please note that there is a high probability that your partner has the same infection, although he might be missing the symptoms or the symptoms might be not easily detectable. Therefore, the same therapy should be taken by you and your partner at the same time in order to prevent reinfection.