Same as her suddenly talking about having post natal depression when she’s never mentioned it in so many podcasts, books, blog posts, envelope openings, etc etcAs ActiveLies said above, Sophie has shared every private detail of her, her families and her ex-partners lives numerous times, yet self harm has never been mentioned previously.
I call total BS on the whole topic and its just something she's made up to try and gain some of the SM engagement she lost over the years.
Self harm is the only thing she hasnt covered and until very recently, its has never been mentioned.