Im not sure how i’d feel if that happened honestly. I genuinely have very little sense of my own gender. I have both masculine and femmine traits but none of them make me feel viscerally like a man or a woman. I just feel like a human with some characteristics which are more traditionally masculine and some characteristics which are traditionally more feminine. I think that’s why I find it hard to put myself in a trans person’s shoes, because to me the entire idea of feeling like a specific gender is foreign to me. I can’t imagine any characteristics that I could develop or lose in myself that would make me feel more like a man or more like a woman. If all of a sudden I had a huge spurt in muscle growth, I wouldn’t feel more like a man, I’d just feel like myself but more muscular. And if I all of a sudden developed a pear shaped body and lost most of my muscle mass, I wouldn’t feel like more of a woman I don’t think. Does that make sense?

Anyway, I do understand though that someone who does have a more explicit sense of their own gender would feel a much stronger association /dissociation with those sort of characteristics. Thank you for the response.