if you are sexually active. your prolly pregnant, becasue i had the same problem i went to the bathroom like every ten seconds, and feeling pressure. and i been having other symptoms...
If you are swollen, perhaps a yeast infection
How old are you?
What does your urine look like - cloudy or clear?
Is there any blood in your urine?
Do you have any discharge "down there"?
Do you have any funky smells down there?
Have you ever had a kidney stone?
If you are really concerned, skip the primary care physician and see a urologist.