Katy having stripped to her bra and knickers, would be freezing as the house is kept at minus three below zero. Or the epidural injection numbed her senses.
Since Andras was wearing a cloth nappy being bed ridden for fifty years, Hector, Tabitha and Shell should have put Katy in a nappy instead of just her knickers.
It is unexplained how Andras could easily walk having being tied to the bed for fifty years or speak 'Mischief' not having a mouth.