Osbournes in shock over MS diagnosis

The 26-year-old – who has recently become a father – was found to have the incurable auto-immune disease after a frightening spell in which he lost 60 per cent of the vision in his right eye.

He and his family have revealed his condition in an interview with Hello! magazine in which Jack said he had experienced a range of emotions. He went for tests at the same hospital his daughter Pearl had been born just three weeks earlier.

He said: “The timing was so bad. I’d just had a baby, work was going great – I kept thinking, ‘Why now?’”

Black Sabbath star Ozzy and former X Factor judge Sharon have also been stunned and are still struggling to come to terms with their son’s condition.