God knows how I haven't noticed this before, I just (well about another hour ago - been frantically googling - which wasn't much help - and pacing the floor since then) took out my mooncup and was giving myself a wipe, when I noticed a growth about the size of a pea (normal not petit pois!) protruding from my vagina - it's flesh coloured and completely painless (no sensation at all, can't even feel it when I give it an investigative squeeze). It can be moved about and seems to be attached to the vaginal wall about a cm up.
Obviously I'm now resigning myself to an early death from vaginal cancer. I'll of course be visiting to doc tout suite, but in the meantime if anyone has any ideas I'd be very grateful - I don't think I'll be getting much sleep tonight!