also, I really hope you're wearing a condom with your partner/s and if not then you need to notify them when you get tested and if you test pos for any STDs
well we cant diagnose you, You need to go to the doctors to get a proper diagnosis and to get treated for this.
If you've had unprtoected sex this could be an STD and you need to be tested. It could also be many other things and thats why you need to see a doctor.