As I have always understood it "U" people are never sick or unwell. Once in a lifetime, they may admit to a "chill" after which any self respecting "U" person is expected to promptly die (preferably quietly), be put into a coffin and be buried in the churchyard. A well born person never suffers from an ailment (bravely endured) passes gently away, is placed into a silken casket or interred in the cemetery.