My old girl was diagnosed with a brain tumour 3 1/2 years ago. She has defied the vet by surviving with steroids since then. Reduced eyesight, clumsier than ever, skinny and very slowly diminishing, but happy, spending her days pootling up and down the garden, drinking dirty water, visiting the poorly man next door, and lazing about in warm patches and sunshine.
Yesterday, she was suddenly different, restless, lowly, walking around the edges and getting "stuck" in corners. Came down this morning to find her lying curled up and awake on the cold tiles. Popped her into her bed where has stayed, passively (she never stays where you put her). She is usually 100% reliable using the tray, but overnight she has pooed at the far end of the kitchen from her tray.
She is quiet, now. Still in her bed, hopefully warming up.
I can't bear the thought of ending her life prematurely, but I don't want to leave it too late.
How do you know?