Sheridan Smith has told the trolls to leave her and her baby son Billy “alone” in an impassioned message.The Cilla actress, 39, posted a collage of throwback snaps of herself as baby to tell her 480,000 followers how much her son, whom she welcomed in May this year, looks like her. Sheridan’s photos show her as a baby, but she did not post any snaps of her adorable baby son.