[cypher]

Hi & welcome to HC
It is always sad to see our hamsters ageing but your. ham is a very old lady now & she must have had a great life & care to reach such a good age.
It isn’t unusual for their fur to begin to thin & lose condition, you could try offering her a few extra flax seeds each day & see if she enjoys them, they may help &. are good for them generally too.
Make sure everything in the cage is as level as possible, it may help to try & compact the substrate down a bit more than usual to make it easier for her to get arounds.
They do tend to eat less too but you can offer extras like baby foods & porridge or some pellets like science selective soaked in water that she may find easier to eat now.
It’s not always easy to know if they’re in pain as they’re so good at hiding it but I would be concerned if her ears are back most of the time, they can suffer pain from things like arthritis just like we do in old age so it may be worth a vet visit just to have her checked over & see if she may need some metacam to keep her more comfortable now.