Hey Heartwood,
I have the above post, about being emotionally blocked and dead inside. It sounds like we're going through a lot of the same stuff...the desire and urge to be of a different gender, and yet the perma-denial still comes and pushes all those thoughts to the back of our heads.
I'm a year out of college and six months ago was the first time I ever consciously had a thought about being anything other than a guy (I admitted to my psychologist that I'd be interested in cross-dressing). In these past six months, I've thought about being uncomfortable as a guy, and I'm realising how I never really fit in with my guy groups of friends, I only seriosuly faked it, and still am great at faking it...
But, moving on, I've been thinking about being a girl and how good it would feel to be more expressive than I am now...I've been thinking about being a girl more and more each day. Same as mine, your strong desire isn't stemming from nowhere: your strong desire to be a girl is stemming from deep within you. Think about it Logically: if you really were just a boy/man, and had no trans-energy in you, why do you have so many thoughts about being a girl? Something (a desire from within) is causing these thoughts and they won't go away until they are acknowledged and [eventually] accepted.
Sorry, I'm not trying to preach at all, as I'm in the same position as you in many ways... It just hurts me to see others going through what I'm now starting to realise I've been going through a lot of my life..which is the pain and deadness of denial. I believe we'll all get there eventually, whereever we want to be to be happy, but have to be willing to put up with the pain first!