Well...I am almost 40 have never had an STD and now I am frantically searching for answers. After sex on Monday (this week) I ended up with a sore spot on my vagina. On Tuesday it turned into a single small blister. It is not red, doesn't itch or anything. No burning or any other symptoms. The blister has almost healed now and it's only Friday. I am scheduled for a herpes test tommorrow but have been bugged about this since it happened because it happened the same way two weeks ago exactly the same way. always seems to be the next day after sex and then it all heals in about 4 days. I'm scared because I have never had anything and the only reason I think I may now is because my ex boyfriend told me he had cheated on me and the girl he was with has herpes. Anyone have the same symptoms as me? I have researched this and except for the single blister I wouldn't think I had it.