"I'm not straight"-- most lesbians are cis-women, and some are pretty femme.
"I didn't transition before puberty"-- less than a century ago, we would have all been institutionalized, mental or criminal. the modern concept of transition began a little over 80 years ago, and was extremely crude by today's standards. Transgender children didn't have that option until very recently, many if not most still don't, and many face absolutely atrocious abuse. Until recently "dressing up and playing dolls" and hoping they didn't get caught was the only option trans-feminine children had to express their gender identity. For some, there are no clear signs of being trans in childhood, but it becomes clear when someone is a young adult, or later in life. Most children who transitioned before puberty aren't even old enough to get SRS yet.
"Hormones have not changed my body..." How do feel with testosterone running through system? How do feel with estrogen running through your system? If you feel better on estrogen, your probably a transsexual. I wish hormones would give the body I want too, with soft skin, softer facial features, large breasts, big child-bearing hips, and a nice round bum. Its probably not going to happen, and "trans-ness" has nothing to do with it, your gender is located in your brain, not your ass, hips, boobs, or face. plenty of women have not much of anything in the way of curves, and plenty of women have way too much (been to your local wal-mart lately?)
If transitioning makes you feel better, then you are trans enough to transition. I still sometimes worry if I am crazy, but pushing forward makes me feel better. Being trans is a pretty hard life, do what makes you feel better and don't punish yourself for not fitting into a neat little box and coloring outside the lines, there are too people already willing to do that for you.
