Kelly Osbourne has been struck down with a mystery illness just hours after her brother Jack revealed he's battling multiple sclerosis.
The former reality TV star was left housebound on Sunday (17Jun12) after she suffered a severe bout of vomiting, but still found time to update her fans on her health woes.
In a series of posts on her Twitter.com page, she writes, "I have been puking so much over the passed (sic) 24 hours I feel like someone has ripped my stomach muscles from my ribs!... If I don't lose some weight from all this misery I will be p**sed!... im (sic) so p**sed I missed scissorsisters (sic) last night! I was literally knee deep in neon yellow vomit!"