AceShowbiz - Barbara Walters, who has never been seen or pictured in public for three years, is reportedly not in a good condition. The former TV host is suffering from advanced dementia, which keeps her mostly in bed all day along.

A source tells Radar Online that the 89-year-old no longer recognizes her famous friends and "suffers from exhaustion and fatigue, as well as anxiety and agitation." The so-called insider adds, "She's very frail and spends a great deal of the day napping!"

According to the site, visitors are not allowed at Barbara's New York home. "Sadly, her dementia has been getting worse. [Her] caretakers give her the opportunity to make everyday decisions, but more often than not she'll stare at them blankly," says the source, adding that caretakers get the impression her mind "turns off, like a blank screen on a television."

Her health is allegedly deteriorating so rapidly that ABC News is preparing her obituary and former colleagues whisper that her end is very near. "They want to be ready for the day that Barbara finally signs off for good!" the insider says. "Barbara is fading a little more every day. She's close to the end and her team is scrambling to manage affairs just the way Barbara would want them," the source continues sharing.

While Barbara's rep and her protective pals still insist she's fine, those closed to her allegedly know her real condition. The source says Barbara's former "The View" co-workers would still reach out to her on the phone, "On good days, Barbara can distinguish Joy Behar's voice, but on a bad day, she might just hang up!"

Barbara retired from television hosting in 2013. She last appeared on television in 2015 to interview then-presidential candidate Donald Trump for ABC News.