Sharon Osbourne says she’s “doing great” after an emergency health scare sent her to a Southern California hospital Friday night.Osbourne suffered an unspecified emergency while filming “Jack Osbourne's Night of Terror” at the historic Glen Tavern Inn in Santa Paula, Calif., where she was filming with her son.In a statement Saturday, Jack shared that his mother was home. "As to what happened to my mum — I'm gonna leave it to her to share about when she is ready,” he wrote."Back home and doing great. Thank you for all the [love],” Osbourne wrote Monday alongside a photo of her dog and Christmas tree on Instagram. She did not elaborate on her hospitalization.