Metal legend Ozzy Osbourne has died aged 76

Speaking about his diagnosis on Good Morning America, Sharon said: "It's Parkin 2 which is a form of Parkinson's. There are so many different types of Parkinson's.

"It's not a death sentence by any stretch of the imagination but it does affect the nerves in your body. It's like you'll have a good day, then a good day and then a really bad day."

Ozzy added: "A year ago I was in a terrible state. I'm on a host of medication, mainly for the surgery. I've got numbness down this arm and my legs are going cold. I don't know if it's the Parkinson's or what. That's the problem."

During an episode of The Osbournes Podcast last year, Ozzy revealed that the many spinal surgeries he had for his Parkinson’s disease were taking a toll.

He said: “Tomorrow I have my final surgery on my neck. Which it is gonna be the final surgery because I can't do it anymore. Regardless of the way it ends up after tomorrow, I'm not doing it anymore. I can't."

“My feet feel like I've got bricks tied to them when I'm walking,” he admitted. “I walked upstairs today and downstairs for the first time in a while, and my feet feel like I've got diving boots on when I'm walking. I think it's the nerves… Then I was thinking, maybe I just need to get up off my a-- and walk around the block a few times."

Ozzy’s death comes just a few weeks after he reunited with his Black Sabbath bandmates Geezer Butler, Tony Iommi and Bill Ward for their final gig in Birmingham, England.