My 131/2 year old westie has clearly slowed down over the past year. She has lost most of her hearing , has cataracts, and arthritis. Recently she has started peeing and pooping in the house. She had blood work done 6 months ago; essentially normal. My vet has her diagnosed as cognitive dysfunction (dementia); tried some gabapentin and Cbd oil; but the pooing and peeing is becoming a big problem; Any thoughts would be appreciated.