Another one with an older lady here. We get
'yowl - I've had a poo/done a wee' followed by thunderous running around the living room
'Yowl - it's dark where are you all?'
'Yowl - why can't I go downstairs' - we live on 3 storeys and ground floor is secured and alarmed on a night.
Vets checked her and apart from same issues as other old cats says its just age.