There's a condition so bizarre and rare that most doctors haven't even heard of it. It causes people to hear their own blood moving, bones creaking, lungs breathing -  even eyeballs moving. Superior Canal Dehiscence Syndrome can have a profound impact on a person's life and mental health... so can it be fixed? We go into a hospital operating room to learn about this little-known condition. Warning: this episode contains a description of a surgical operation. This episode first aired on 29 March 2020.