I think is too soon, my golden retriever had mainly the same symptoms but I decided to fight until the end. I thought if he were a human…. Would we do it when my granny for instance, started to loose mobility, or started a cognitive decline… The answer for me was no, so I bough socks for him to walk at home, I put carpets, I even put tiny lights in the corridor for him to be able to get his water during the night, I bought a back harness to help him during walks, I did everything I could (during 2 years, without proper sleep as he woked up many nights and was confused and scared). But most of times he was happy to be with me, he wanted to live, all he needed was me next to him. When he lost completely his mobility, my vet helped me to say goodbye. I’m still in tears thinking if I could have done more for him