I am female in my dreams about half the time. Not sure how to identify whether I feel male or female during my waking hours (It's not as simple as in a dream, where I am factually one or the other). I think it's just a power thing. Most woman in my family were/are abusive and, simultaneously, weak. It occurs to me that I wish to feel strong, which my subconcious interpretes as being male.
Now of course one does not exclude the other, so I would pose you a question, if that's okay: How do I know if I'm trans?