My physio is at Erina on the Central Coast (Tara McKenzie at HealTHY Self) but I'm happy to ask her if she knows of anyone in Sydney, I see her Friday next week (20/2). She did say there weren't too many physios that specialise in this particular area of women's health, but I would imagine that there would be someone locally you could see. I popped on the Australian Physiotherapy Assoc's website & you can search for a physio with a women's health / pelvic floor specialisation for your area: http://www.physiotherapy.asn.au/APAWCM/Controls/FindaPhysio.aspx - hope this helps!
Best wishes, Jane xx