Over the past week, my husband and I have noticed that Sophie's hearing has gone. She doesn't hear normal voice volume; only loud noises. Sophie isn't quite six years old, so it's not old-age-related deafness.
She has no PSOM symptoms listed at cavalierhealth.org and otherwise is a very happy, healthy dog.
Sophie had an excellent health check-up back in June.
So, I am relying on the collective wisdom here at CavalierTalk. Hubby wants me to take her to the vet for an exam. Outside of the inconvenience of having a deaf dog at such a young age, what could a veterinarian do for it?