Hi Kay, Get your self down to your nearest STD/GUM Clinic, and get yourself tested the staff are really helpful and will sort out your problem, it could be something minor and if its worst they will tell you.
Good Luck
Hi,
This sounds like it could be Herpes or Syphilis, although syphilis is not very common. You should go and see your doctor to find out exactly what it is.
I was raped a few year ago and that happed to me it turns out that the man gave me herpes. So if i was you i would go get it checked out by you OB/gyn. And ask all the people you have slept with to go get checked. I pray that its not that. But if i was you i would go get checked.