Sources connected with the 28-year-old "Fashion Police" star tell TMZ that the seizure was far more serious than first suspected and doctors are still running tests. It's possible it was an isolated incident, but professionals are also saying that there's a chance Osbourne has epilepsy. Insiders also reveal that she'll be in the hospital for a few more days.
Meanwhile, Osbourne's mom Sharon Osbourne took to Twitter yesterday to reassure fans that her daughter was OK.
I want to thank everyone for their concern about @misskellyo. She's doing fine she's at Cedars and is surrounded by the best doctors & love.Kelly herself also shared an update on the social media site, thanking her followers for the support and confirming her medical situation.
— Sharon Osbourne (@MrsSOsbourne) March 8, 2013
Thank U all 4 UR beautiful well wishes yes I did have a seizure they are just trying to figure out why? twitter.com/MissKellyO/sta…
— Kelly Osbourne (@MissKellyO) March 8, 2013