Sorry to hear this. It was a similar story with my cat a few years ago. It’s a horrible thing to have to doRadar was put to sleep in my arms this evening, we spent some time with him beforehand to say goodbye. Turns out that his health issues were caused by him battling what was probably cancer in multiple places including brain tumour, we decided given the neurological involvement and other complications from having a weakened immune system and such a poor prognosis no matter what, that we wouldn't put him through any further tests. He went peacefully with his head resting on my arm