I'm an AMAB non-binary. It's a little confusing for me, because in some ways I'm like a binary trans woman, but in other ways -- in my heart -- I am not.
My presentation (or at least how I'd like to present) is basically feminine, and there are times when I wish I could be a woman, but I just plain don't feel like I'm one. I know I'm not a man (at least, not inside -- my body keeps insisting that I'm male), but trying to imagine that I'm really female inside seems as much a lie as my 60 years of trying to imagine I was male.
I really notice this when I talk to binary trans people, especially binary trans women (who I resemble.) They seem to have this longing to feel like women and to believe they are women. Not to knock those who feel it, but the phrase "trans women are women" just doesn't work for me. But I do want to be accepted by women as a woman; not because it would prove anything about me, but because I feel more at home among women than I ever did among men and I'd like to be accepted and not seen as some kind of interloper or intruder.
And when I'm feeling this "not really a woman" way, I often wonder whether it's just some part of me that wants me to keep feeling like I don't belong anywhere and that I'm only conditionally accepted, like I have all my life. Maybe my non-binariness (and my transness) are just mental illnesses that I should be trying to cure.
But when I think of "curing" these mental aberrations, I think of the 11-year-old child I sometimes feel crying inside of me, and "curing" me always feels like I'd be drowning that child, the way people used to drown kittens.