As of your details ,Urine show few pus cells with no bacteria so relates you having sterile pyuria
the causes may be renal tuberculosis
, gonoccal urethritis, C.trochomatis, leptospirosis
or the common being is when you treated with antimicrobials
stool finding shows greenish colour may be of jaundice but you not given proper finding we can conclude it.
SO as of now you having UTI which get precipated with Sexual transmission which needs complete course of antibiotic. prophylatically daily or thrice administration of a single dos of TMP-SMX(80/400Mg), TMP alone(100 mg) or nitrofurantoin
particularly effective. Norfloxacin and other fluoroquinolones
have been used for prophylaxix