Humans are complex, it's all entirely possible. Some people think a MtF lesbian is weird enough, even though it's quite a simple concept.
A friend of mine is pansexual, but she considers herself a lesbian, but also genderless most of the time, and still sometimes sees herself with a male persona and likes gay guys as well but loves being a woman, and being with another woman as a woman. She doesn't consider herself trans-anything though. Some people are just complicated, multi-layered, and contradictory. As long as you can come to terms with it all and make peace with the conflicting elements, I don't see that there's really an issue. You don't necessarily need to label yourself.