When Ellie Colton was 14, she thought she was dying. But doctors told her it was 'just bad periods'.⁣ ⁣ After years of debilitating pain she was finally diagnosed with endometriosis, a gynaecological condition that affects around 1 in 10 women.⁣ ⁣ Her story is not uncommon - it takes an average of eight to nine years to be diagnosed in the UK.⁣ ⁣ Ellie explores why it takes so long to be diagnosed with 'endo', and meets a woman who had a perfectly healthy appendix removed because she was misdiagnosed. ⁣ ⁣ #BBCIdeas #Endometriosis #Health #Diagnosis⁣ ⁣ Watch Emma Barnett: Fighting Endometriosis on iPlayer