I'm in a similar boat as you. Very unaccepting family. My grandparents take care of me. I've been wanting to start T, but I'm afraid if they found that I'm trans. I'm sure they would kick me out, but I could live with my aunt and uncle, still not accepting, but they wouldn't kick me out.
So I was so close to starting T, but then I backed out because a few friends I talked to told me not to do it because it was too big of a risk. But it's all I can think about it. It's driving me crazy, and that's how I know what I got to do. I think I'm going to gather back up the courage again and start T. Because I got to stop living for other people and start living for myself.
Yes, it's true that my grandparents are doing me a favor by taking care of me, but think about it, they're not living for me. Why should I live for them?
When I say "living for someone" I just mean that their life comes before mine. But no, from now on, I decided that my life comes first.
That doesn't mean I got to be totally selfish. I still help out anyone when I can, but not ever to the degree that it prevents me from living my life.
This is my new life philosophy. Someone does me a favor like saving my life does not mean that I owe my life to them. It simply means I owe them a favor as simple as the effort they put forth into me.
And, you don't have to pay them back the favor today. In fact, knowing how unaccepting they are of you, you should plan to wait 10+ years. because if they reject you, all bets are off. you know?
So go ahead, lie and cheat and steal. You got one life. And you live for yourself and your happiness. And once you have what you need, once you have a stable life and you are content, then you can take the time to give back to the universe.
P.s, I wouldn't have told them I was going to the doctor for pcos. That's just so suspicious, lol.
Anyways, I don't know if anything I said made any sense, I'm really tired.
I hate to make it sound like I'm telling you to be a bad person. but really, the world is full of bad people, and good people get taken advantage of. So protect yourself first, and then you can help others. Oh, I just remembered a saying, you have to help yourself before you can help others.
I guess, bottom line what I'm saying:
Don't tell them if you don't have to.
Keep on doing everything you can for your transition and for yourself.
If hey really love you, and deserve your love in return, then they should accept you. and if they don't, they don't love you. and why feel bad what you do to someone who doesn't really care about you?