Who are you anyways?
Some pet parents who have had a pet dog for more than 8 years have experienced seeing their pet barking at walls or at unseemly things…they may have also seen their pets bump into places and get ‘lost’ in the home or just get stuck in a corner. Sadly,

some have bore not being recognized by their beloved pet.
Science and research has tagged these outward symptoms as dog senility or Canine Cognitive Dysfunction or Cushings Disease. This is very much connected to a dogs cognitive or recognition skills and exhibits behavioral changes. Pet dogs suffering from this old age disorder rarely responses the way they used to, their direction is often shut-getting lost in its own home for years. Some CCD suffering pets even regress from being the best smell hound to being an aimless old dog, often missing its elevated dog feeder.

A pet dog positively diagnosed with CCD is said to have less and less dopamine or neuro-transmitters which is broken down because of depleted enzyme absorption. The treatment drug L-Deprenyl allows a recovery rate of 80% in 2months treatment time.
Unlike senility in humans, CCD is reversible and risks may be medically lessened.
Like all pet related sickness, diagnoses by a trained professional is called for and maybe trained.