Just a thought Ladies: I have watched this increase for the last 20 years and upon reading your posts what popped into my head is the increased use of tampons and douches. I began to have problems 20 years ago and I stopped using tampons, guess what ... the problem went away. I've also noticed the increase of scented products. Hummmmm now I'm not saying this is the cause of the issue, but I believe it is something to look at, perhaps?
Just a thought...
Namasta