sounds like a urinary tract infection to me, try taking like two AZO cranberries (pills, otc bought from most drug stores) and drinking alot of cranberry juice for a couple of days. i've had a couple of those, i've had them a couple of times, not sure what causes it, but i know that anything with citric acid or carbination and alcohol make it hurt alot worse, if you come down with a really bad pain, run a tub of some fairly warm bath water and lay in it for awhile, that's what i used to do to ease the pain as i fought to get rid of it. the times i've had it i must've taken 4 or 5 baths in a day.

on the other hand if you haven't gotten rid of this pain in a few days you need to go see a doctor. these symptoms could also be caused by chlamydia, which is curable easily with a handful of pills on the inital diagnosis and 1 or 2 every day for a week (sadly i've had this as well, since then no unprotected sex for me unless i KNEW they didn't have anything) but the diagnosis is the hard part. i'll tell you what it involves so you can be prepared but don't let it scare you from going, you HAVE to have it cured or it can cause serious problems and maybe even death. they're going to stick a q-tip with like a double sized head 2 or 3 inches down your pisshole, and it WILL hurt (fuckin cunt ass nurse told me it was only going to be "uncomfterable" )