MoniqueW, You most likely have a UTI (bladder infection). See your doctor for some medicine to doctor that. Drink lots of water and cranberry juice until you get to see him/her.
I have no idea what a split urethra is? The urethra is a canal carrying urine from the bladder to the vulva. There are 2 other small openings next to it in the vulva, the Skene's glands.
Take care