If someone told you they could hear their own eyeballs moving, their blood pumping through their veins and their voice echoing inside their own head would you believe them? Get ready to go inside the minds of two young women struggling with all those symptoms and one of the world's most disturbing medical conditions. Prepare for a sonic trip of swerves you never saw coming as we take you inside the operating theatre for a world-first procedure to try and fix the syndrome.