How do I define my sexuality and tell my parents about my transgender partner?

I am a girl, in love with a transgender guy. He was born with the wrong parts, but is truly the kindest person I have ever met. I love him very much, but I am afraid to tell my parents. "Adam" may have been born a female, but he is now a male, and is planing on getting surgery to prove it. My parents are Christians, and I'm not sure they will approve of him. Does me liking Adam, and female to male transgender people, make me a lesbian? Or bi-sexual? My parents deeply disagree with these things and I am afraid to talk to them about Adam.


Why do I get flushed and tired after eating lunch?

I find that when I eat lunch I can feel myself instantly get tired as if a wave passes through me. My face gets a feeling of being sweaty and flushed. Coffee and copious amounts of water help counteract this. Also, it doesn't happen every day with every meal. Very small amounts of food don't cause this. It's as if I eat above a small threshold, then it happens. It makes it hard to work. A short nap would be perfect (but not possible). Is this something to be worried about?