Just to say that I appear to have been greatly helped by 6 or 7 visits to a chiropractor. She used an Activator and although initially sceptical, I can say that I have now been virtually pain-free for over 3 weeks. I am going back in a month's time. We both hope that my visits will become more and more spaced out. It may be worth trying for others but make sure the chiro uses the Activator method (an instrument which is used instead of the usual bone cracking stuff!).
I really hope this helps someone. Before I went I suffered constant low dull aches in the perineum/pubis/back.