I have a flap about 3 inches inside of my vagina. Both my boyfriend and I can best describe it as feeling like a uvula but bigger and harder? It is about one inch long and is on the top wall. It has a smooth feel to it, and its not soft but not too hard. I know this isn't a cyst or tumor because it doesn't feel like a cyst and doesn't hurt. I only just noticed it a few months ago, but I may have had it all of my life. When I put my fingers inside straight the pathway is blocked by it because it hangs down a bit, but if I put my fingers in a downward angle it's fine? If I push up on it, it doesn't HURT but it's not the most comfortable thing. If I'm aroused and I push up on it, It's easier to push up and not as uncomfortable. Do you have any idea what this may be?

No idea. It might be worth a mention at your next GYN appointment.