Vagina Rugae?

I just noticed this a week or so ago, so I am not sure if it is new or if I haven't noticed it before. I am 18 and not a virgin and currently sexually active. I don't have a planned parenthood nearby, and I don't have the money to go to a doctor without need, so I'm hoping someone can help me before I freak out any more about this. How big are the rugae supposed to be? Inside of my vagina, on the top wall, there are weird folds and 'bubble' type things. They aren't painful and are fleshy and pink. They are huge though... I can pull them outside of my vagina, to where they cover basically the whole hole. When I stretch my labia, instead of a dark 'cave' of a hole, the top half is fleshy and the hole is small. I can't find anything online, and I'm afraid these are some kind of harmful growths. I've tried to find pictures, and most look normal... they don't have the blockage I seem to have in my vagina. Is this just a personal issue or can it be something harmful? I don't know if rugae can be this large or if it is something else. Thanks in advanced