Lost virginity on May 9th, 2012. Today is August 20th, 2012. Since then I haven't slept with anyone. The man I lost it to had more then ten sexual partners. A few weeks after, I had what I believed was a UTI. Weeks after that, I went to a public pool, and then next few days I thought I had a yeast infection. That was over a month ago. I am now having a burny feeling when inserting fingers in my vagina. It burns afterwards. And I just ended my period, and I used pads. Yesterday I was just spotting so I wore the same pad all day. Today I realized I had red bumps outlining the lips of my vagina. Could I have a sexually transmitted disease and that would explain the uti & yeast infection? Or is this just a period rash? The bumps are small, slightly red, and don't seem to have any white puss in them. Please help.