I have notice that my vagina opening has got a little itchy 2 nights in a row now. upon examination i've found 1 hard-ish lump just inside my vagina by the opening. it's all alone and it doesn't look like a wart. it doesn't hurt. just wondering what it is, really worried that it's a genital wart. although, the descriptions of them i've found online are different. clusters etc. but please help me! i'm really worried!