By Daniel Bird Former BBC Strictly Come Dancing star Amanda Abbington has reportedly requested her rehearsal tapes from her time on the show to lift the lid on what happened behind the scenes with her professional partner, Giovanni Pernice. The 51-year-old Sherlock actor is said to be taking legal advice after being diagnosed with Post Traumatic Stress Disorder (PTSD) after it is claimed she needed therapy following her time on the show. Amanda quit Strictly back in October, citing personal reasons and did not return for the final of the BBC series along with other contestants who had been vot…