Strictly fan-favourite Amy Dowden has been rushed to hospital after collapsing backstage after last night’s main show. The 34-year-old Welsh dancer, who hails from Caerphilly in South Wales, was attended by paramedics at Elstree Studios and taken away in an ambulance. An East of England Ambulance Service spokesman said: “We were called just after 9pm on Saturday to attend a medical emergency at Elstree Studios in Borehamwood. “An ambulance was sent to the scene. One patient, an adult female, was transported to Barnet Hospital for further care.” Dowden, who suffers from Crohns disease, returned…