Sharon Osbourne has "become a control freak" since her son was diagnosed with Multiple Sclerosis (MS).

The Talk presenter admitted she has felt guilty ever since Jack found out he has the disease and has started fussing over him, even though she knows it annoys him. Speaking during the Judges' Houses stage of the X Factor, she said, "You go through the guilt, you go through the 'Is it me? Was it me?' and you through the family tree going 'Who died of what? Where did this come from?' I've become even more of a control freak. I think I I'm driving him nuts."

Sharon also admitted she panics over the smallest things now and even worries if Jack gets a headache. "He's got a headache and I'm all like 'Go to the doctors! I'll drive you myself!' And I'm fussing and asking him what he's eating and all of that kind of thing. He's as good as married and he has a baby and he left home about a hundred years ago and I'm still fussing over him. I think I'm driving him mad but that's what mothers are for," she added.