that is enough to seriously impact YOU. there is lots of debate and differing theories about what affects our sexual identities - but events like you described are more than enough to cause emotional and psychological complications - if not all-out trauma. you sound like you feel the need to explore this further - it is worth the effort to try to understand more clearly. i'd suggest reading some of the reccommended books and articles on the home page and seeing a qualified therappist.
and of couse - chatting with others on the MS forums is often helpful, too.
They have greatly oppressed me from my youth, but they have not gained the victory over me.
Plowmen have plowed my back and made their furrows long.
But the Lord is righteous; he has cut me free from the cords of the wicked.