Ay nako, sis, if may UTI ka talaga, kailangan mo ng doctor na agad para ma-confirm through proper tests and ma-prescribe ang tamang gamot, hindi ito dapat i-self-treat dahil pwedeng lumaki ang problema! Go to your nearest clinic or hospital kaagad, lalo na if may pain ka or fever na, okay? A few of my mum friends learned the hard way na ang UTI needs proper medical attention, kaya don't delay. The doctor will do a urine test (like the urine culture you mentioned) to see exactly what's causing it, then magbibigay siya ng right treatment para sa'yo. Take care, mommy!