I am a natural switch, so I have both sets of feelings. E.g. I would never be submissive to a man, but can with women.
Folks always get stuck up on labels and categories in an attempt to understand. Their are some fantastic writers on Medium that maybe able to help you out. Once such good person is Mysterious Witt, which you can read her writings and views on sex and intimacy. There are others like Elle Beau and others too which may help big time.
The big thing is don't feel bad about finding out new and awesome things about yourself, and don't judge.