First you need to calm down. Your just stressing out and making things worse. It sounds like it could be chlamydia or maybe gonorrhea which are both curable if you get it taken care of right away. If you don't have, or want to go to a family doctor I would suggest if your in the US a free or low income clinic that we have listed here
state by state.
It's important that even if the symptoms go away you still get tested. The people at these clinics deal with this sort of stuff all the time and want to help you. I've talked to many of them myself and love the idea that this site exists because it helps people connect with professionals. So go and get checked out it will calm you down and you'll feel a lot better in the long run.
If you have any other questions feel free to ask.