So it has come to my attention that in recent months, my fanny has started to taste a bit tangy/sour. 

Everything seems to be working just fine, and the only thing that has changed is that I have started using contraceptive patches - is it possible that these could be responsible or does anyone know of anything else that it could be?
I know you will all say to speak to my GP but obviously hiding in shame on the internet is a much less embarrassing place to start 😬