'Very Sick' Shelley Duvall Is Battling Mental Illness

The actress, who has been out of the spotlight, reveals struggle on "Dr. Phil."

— -- Shelley Duvall, best known for her roles in "The Shining" and "Popeye," is grappling with mental illness.

"Do you see him?" host Phil McGraw asks her in the clip.

"Have, yes," the actress replies.

The former star also said she's being "threatened" by the Sheriff of Nottingham, a fictional character from the Robin Hood tales, and that she believes there's a disc implanted in her body. In the clip, she lifts up her pant leg to show McGraw.

"I’m very sick. I need help," she tells him.