About three days ago I was in the shower and noticed it hurt when I was washing my self 'down below' it was only a mild pain and it was inside the vulva on the major labia (near the clitorus). I am no stranger to pimples in this area and assumed that's what it was but it has since become more painful. I decided to take a look at it and didn't find a white head (as I usually do) it was only inflamed and when I touched it I noticed that it was like a lump under the skin. I have gotten one like this before but I don't remember it being this painful. I also have never had any sexual contact with anyone. Is it just a cyst or something more serious? I just want to know, should I be worried?