What is it?

I posted a few hours ago but nobody was awake I’m guessing. I know it’s normal to have little tiny bumps/dots on the labia minora, but I have this one bump, it’s still tiny but it’s bigger than the rest. It hurts when I touch it and only when I touch it. It’s been there for years, but just recently turned into a whitehead. On my last post someone said it could be an ingrown hair, but it’s on the labia minora not the outside lips, but the inside so it can’t be an ingrown hair. It’s never bled, never had anything come out of it, and I only have that ONE bumps that’s like that. It used to never hurt or feel that big until I start touching it to see what it was. Does anyone else have this or have any idea what it could be?