Well, first off, I would tell you that, not matter what anyone else says, you shouldn't feel ashamed of these things you're concerned about and you should be comfortable with who you are and who you want to be
Maybe you should do some research into medical professionals in your area who specialize in "gender identity disorder" or hormone imbalances. Some professionals who could help are endocrinologists and psychiatrists/psychologists. I don't have any experience with gender confusion, but I hope this helps.
Also, doctors are there to give you advice, you don't necessarily have to take it because it is your body. Sorry to rant but many doctors here are so stubborn and pigheaded they practically pretend they can walk on water.