The 26-year-old son of rock star Ozzy Osbourne has thanked fans for their support following his diagnosis of multiple sclerosis.
Jack Osbourne announced to Britain's Hello magazine yesterday he had been diagnosed with the incurable autoimmune disease that attacks the brain and central nervous system.
Despite telling the magazine how he was emotional when he was first told, he has taken to Twitter to express how he will "adapt and overcome" the disease.
"Thank you all so much for the kind and inspirational words. It means a lot. #adaptandovercome," he tweeted.
In April, Osbourne went to see a doctor following the loss of vision in his right eye. After a series of tests, a neurologist confirmed he had the disease.
"While I was waiting for the final results, I got really, really angry. Then I got really sad for about two days, and after that I realised: 'Being angry and upset is not going to do anything at this point, if anything it's only going to make it worse& 'adapt and overcome' is my new motto".
"There are four different types of MS, and the other one that I have is relapsing remitting. It's the most common, but least aggressive form of MS."
The diagnosis came two weeks after the birth of his first child with fiancee Lisa Stelly.
Osbourne's mother Sharon said the family, including Ozzy and sisters Kelly and Aimee, are finding it hard to accept the diagnosis and are unsure of how to act around him.
Sharon Osbourne broke down in tears on The Talk this morning.
The showbiz matriarch could not keep her emotions in check when she spoke to thank fans for their messages of support.
Between sobs, she said: "He's great - he's doing really, really good and I want to thank everyone for all their texts and goodwill and love they send to us.
"Thank you to everyone for all their good wishes. It's been amazing - but for Jack because I really believe that vibes of prayer help."
"And what I'm doing right now is not helping because I'm just feeling sorry for myself, and that is no good. So we just have to think positively and get on with this show that we love."
"I keep thinking, 'What did I do wrong? What did I eat or drink when I was pregnant?' I feel like it's somehow my fault," Sharon Osbourne said.
MS sufferers will experience changes in their balance, vision and thought processes.