Reportedly, I did when I was very very young, before I started developing memories. As early as 2 years old. I only have one real memory of doing it when I was about 4 years old. But my crazy biatch of a mother started love bombing me and telling me how lucky I was to be a boy and how boys were much better than girls and so forth that I got really confused. I recall asking about getting surgery when I was 5 or 6, and that my parents told me to stop telling people I was a "tom boy" around age 8 or 10. When I got some gynocomastia around age 15, I refused to let them do surgery to remove it. Still, I was convinced I would never transition, but it proved impossible, and I started transitioning in university, and got disowned by my parents. That was a rough time.