I noticed a bump on my vagina its hard under the skin and feels like there is something in it like I could pop it and a few days later another appe?

Vaginal lump. Mucus cysts or sebaceous cysts are common in the vaginal area. There are lubricating glands which can get blocked and swell, and are painful, so if this area becomes very painful, see your gyn provider to determine how to treat this condition.