Yes there is evidence on the very edge of science re IC and an embedded bio-film infection that burrows deep into the bladder wall , I also come under the heading of IC.
Professor James Malone - Lee I will put up some info later if I can get it onto here , science is always moving forward regards new findings with anything .
Just need to remember Professor Marshall regarding stomach ulcers , always told stress diet , he had to infect himself and prove it was a bacteria that we all now no as h-pylori bacteria , he was as good as shot down by the establishment, I no many ladies who were told they had dreadful IC some bed bound , it proved to be infection.
We are also prone to UTIs yes as we age , due to lack of oestrogen.