20 year old cat
She has hyperthyroidism (about 3 years) - pretty well-controlled on Vidalta, is totally deaf, stiff in the hips, and now has signs of kidney failure - just started on Renal diet. No kidney infection
About a month ago had a bad turn - listless, not eating/drinking. Given steroid tablet and subcutaneous rehydration. At that point I had been ready to let her go but wanted to take her home to say goodbye to the kids. Amazingly, she rallied.
She's eating and sociable, but has in the last couple of weeks stopped going upstairs.
Also (and this is the main thing), we've had 3 occasions when she has peed on my lap, and when we came home from holiday, she'd peed repeatedly on a leather chair, and peed and pooed on a side table. I think this is partly because she didn't make it upstairs to where cat litter tray is, so I've moved that downstairs. It may also be that she was missing us and a bit confused.
I've also kept her in one room while we are out. She sleeps a lot of the time but comes and says hello and sits on laps.
I always said I would not want to take heroic measures to "save" her at this stage of her life, and I don't want her to be in pain.
My question is - how will I know when she's had enough, and would her peeing in inconvenient places be enough evidence that its time to have her PTS? I feel horrible for asking that!
Thanks for reading. Wise words appreciated.