Sheridan Smith has revealed she almost died after Bafta host Graham Norton made a joke at her expense which sent her “off the deep end”.The 39-year-old actress opens up about her mental health battles in a new ITV documentary about her experience of pregnancy and becoming a mother - confessing she was addicted to anti-anxiety medication and tried to go cold turkey.Smith recalled the night of the TV Baftas in 2016 when she was nominated for Best Actress for The C-Word: “Graham made a joke