Article continues below advertisementCheryl is said to be enduring "total agony" behind closed doors as the recall to prison of her stalker revives a trauma friends tell OK! has permanently altered her sense of safety - compounding her ongoing grief following the death of former partner Liam Payne.The Girls Aloud singer, 42, has faced repeated breaches of a restraining order by Daniel Bannister, a convicted killer who has turned up at her home multiple times since early 2024. Bannister was jailed for one year last September after violating court orders within weeks of a previous release.