I have not posted anything on facebook. But I do have a private group on face book that I invited important people in my journey to follow updates and pic. That being said tho when people ask I am extremely open about it. I work at a doctor's office so some patients you don't see people for months. When they come in they are shocked. some don't even recognize me. If i could help someone by educating them or helping them make a decision I am happy =). Everyone is different do what is comfortable for you.
P.s. I had surgery Oct 2016. Best decision ever