Kso im 15 and i had this same problem awhile ago and it went awayy on its own. But i want to know whatt it is. Its a small pea sized lump on the inside of my labia major its on the inside and it does hurt when i touch it. If i touch it i can move it.. and i have been master bating with on electrical toothbrush lately like 4 times? And i have gotten it since that started. Any answers? And i dont want to hear go to your doctors. I want a reason. :/ help