I feel like it's just harder to observe the cats generally, at least mine. He's asleep somewhere from like 8am to 4pm. He'll change positions throughout the day and then nap somewhere else. Then he relaxss from 4-9pm, with a break for dinner, of course. Around 1-5am is when he thrives.

Have you tried cosequin treats/supplements? Our 15 year old fussbucket started not wanting to jump up on things a year ago. Vet recommended giving them a try for starters, and we have seen a significant improvement in her.

My mother's cat had hyperthyroidism and she gave her the medicine in her ears. Rubbed it in, absorbed through the skin was much easier than pills. Usually.

Hyperthyroidism? If you haven't looked into it, ask your vet about radioactive iodine therapy. I've put two cats through it with great success. If her thyroid is broken the hypo direction I have nothing to offer but condolences, getting cats to take their meds can be a real pill.

I know what you mean with the arthritis shots. Mine started his a few years ago at 3.5 years old, and developed a couple of chronic digestive issues that led to $ at the vet and pet store. The fucker is expensive, but worth every penny.