I can speak on this issue, tis a rarity.
When I was little-er, around the age of 13, my father found a significant amount of female clothing in my room. He asked if I wanted to be a female. I openly lied, and said no. I regret such a lie now, but oh well. Well anyways he began to use physical force to try to remove such feelings from me. He either already knew the truth, and wanted to hear it from me, or was just scared.
However now that I am bigger, and a little stronger. I faced him and told him, once again he was ashemned but this time he knew his place and his purpose which was not to be violent.
What little conversation I use to have with my father have dropped off. I look at it this way, if he wont accept my new life, I wont accept his.
As bad as mine turned out, there is a purpose to this reply. However cleaver you are from hiding it, despite how much energy you put forth into such an act. Parents - not all of your family, but parents- know a lot of about thier children, and may have forseen such a thing. Which gave them time to accept this change.
I'm not nearly as helpful as some, but I am still *I*