This whole thing is actually pretty simple. What are you, a man or a woman? You are whatever you say you are. If you say you're a woman, ok. You probably know a lot more about yourself than anyone else, so if you say you're a woman, you are a woman. If you say you're a man, same thing. If someone disagrees with you about what you are, you really don't need to pay any attention to that. When it comes to who and what you are, you're the expert, nobody else.