The 28 year old was hospitalised for five-days.
Representatives told E! “Doctors ran numerous tests and determined that this was most likely a onetime episode of which there are no conclusive results. She is looking forward to returning to Fashion Police this week and getting back to business and life as usual.”
Osbourne had previously tweeted, “My life is now like an episode of House = the impending fight against death and the look of fear in everyones faces!”