You know, this is actually an excellent topic in my opinion.
When I IDed as trans, I based it mainly on my body dysphoria that developed around my puberty, because I was a tomboy as a child and I reached puberty at 10, so, wayyy too early for my tastes. I saw other females around me who didn't have a problem with what happened to their bodies, they seemed really happy in fact and tried to accentuate their curves with the right clothes. Trans accounts I read, on the other hand...
As I got older and realized I am, after all, female, I must say there is pressure on both "tomboys" and "girly girls" to adjust their bodies to a certain image. "Girly girl" image is the one we see on all commercials, movies, etc. , it's the typical girl/young woman image people usually picture (lean but curvy, face makeup, heavy on fashion...) AND the image many MTFs try to recapture. Tomboys are much more elusive. Since many of us have hangups with our female puberty, we'll try wearing clothes which minimize it (sportswear, baggy clothes, etc.). I personally felt I would be wayyy happier if I hadn't had a female puberty but a male one. So sometimes I binded and walked with a slouch to hide my breasts (this, in turn, caused me some spine problems, which now by walking straight again I have somehow remedied, but don't do it! is my advice). I felt I could relate to no female because no one had the problems I had, and on the other hand I read of MTFs feeling euphorical about having estrogen in their bodies, which was the thing that caused all my problems, so I thought I must have been not female. BUT IT'S NOT TRUE! If you feel discomfort with your female form it doesn't mean you are necessarily a transsexual. I still dress as I have always dressed (it's not that the revelation of being female made me dress any differently, I'm still highly unconfortable around "cute, lacey things" and 100% female typical stuff, it's just not who I am), I am who I have always been on the inside (shy but very prideful, nerdy, sensitive but it's a secret, k?), just freed of the dysphoria. So listen to who you are, and don't be influenced by both the "mainstream straight culture" as well as "trans culture". That's the advice I have to give.