I'm actually the exact same way: I have alot of fight and i liked to be forced into submission. Its the role that we're both usually not in which is probably why we crave it so much. However, for me, it really does take someone special to handle me or else I will become their domme easily. You will notice that alot of self appointed doms have previously been subs and vice versa. To me everyone is a switch and they just are in touch with one side more than the other.
Being submissive doesn't mean you bow down to everyone, just your master. Because you are so strong, it is a sign of strength to your master, its nothing to be ashamed of I think: its something to be proud of.
On another note, I agree with fetishdj... find your niche and don't worry too much on labels. Why don't you try out doming for a change? It seems to me you really do enjoy having a female under you. A thought =]