i also only started questioning for real after someone came out as ftm. he was stealth, presenting as the man he was, but without revealing personal history. my reason for questioning wasn't that i wanted to be like him, i just realized that the reason i'm different to other women, might have to do with traits i have in common with him.
wanting to control my body, is something i've written off as a possible reason for wanting to transition. i do have a history of abuse, but my normal way of thinking doesn't say anything about men having more control than women. if i wanted control, i could just as well do it the feminine way, which actually seems much more vicious and appealing to me as a method of achieving this. but i just don't want to sacrifice this sense of manliness in order to do that.
being treated as a woman also sometimes makes me so confused i have no idea how to retaliate or protect myself. or i had no idea. now i know that i'm not a woman, so i'll find much better ways of controlling my own life and surroundings.
knowing for sure is impossible, unless you experience the truth of it. i only know that i'm not a woman, but that doesn't automatically mean i'm a man. i don't think i'm that either, and have finally labelled my gender as 29A, rather than F or M. but i still feel uncomfortable with a whole lot of things that this currently very female body of mine does, so i'll have to change it until i can manage to like it.
uhh, i was supposed to write more, wasn't i...
yes, how to find out and explore your feelings.
try presenting male online. anywhere you possibly can. people can't hear your voice on forums.
see what it does to your feelings to be treated like a guy. i know i like that better than being treated like a girl. it's something that i've longed for since kindergarten. though i didn't realize back then that presenting female made this completely impossible. while all the other girls found the sex segregation so natural that they never even tried to play with the boys when they played boy games.