weird bumps

I have developed small blackish/purpleish bumps on the inner side of my outer labia. I have been with the same man for 6 years (faithfully) and have been tested for herpes. I have not seen a doctor yet over these bumps, I've just begun a new job and just cant yet. The bumps are a wee bit raw feeling. They feel barely, if at all noticeable to the touch. They happen to be located right in the spot where my labia would wrap around the vibrating bullet I use for masturbation, but I've been using one of these for years. Maybe they're ingrown hairs that have been pushed too far down due to excessive vibration and rubbing? Sorry, I don't mean to be too graphic. I am just scared. I'm a clean person and so is my fiancee. Anyone with any knowledge, either personal or theoretical, I'd very much appreciate it.  Thank you!