i have a lump on my vagina, its on the outside, not quite at the knicker line but nearly! it is not visible, but is very easily felt, it doesnt move, it is hard and very painfull, what could it be? ive had it before and this time its got a lot more painful, I know I shouldn't worry, people say its a subaceous cyst, but ive seen pictures and it looks nothing like that at any point, its just extremely sore, I also get headaches when it comes and stomach aches, just someone give me an honest answer, quick.