It's important for doctors to know your medical history, that's obviously true.
Do you know how trans people on HRT respond to Ambien, as your first link brings up? I sure don't. Depends on why the drug works differently.
If you're scared that you'll die because your doctor thinks you're cis, tell them you're trans.
That doesn't mean you have to tell your doctor "I'm really a man, despite being a trans woman, and it's definitely important for you to store an M in your records because you might suddenly forget that I'm trans and also I'm sure my reaction to medicine is the same as a cis man's."
Just be an adult and talk with your doctor honestly.
>If you're scared that you'll die because your doctor thinks you're cis, tell them you're trans.
I'm more scared that my doctor will know I'm trans but not give me proper treatment as a result of being scared of losing their career to backlash from the politically correct. It's a far more realistic fear than my doctor not knowing my gender and it isn't something that would be brought up because it is a taboo to ask someone their "real gender".
I'm happy to expand on this if necessary, but this fear of social backlash has already caused problems in other fields of work such as policing certain minority groups in the U.K. It isn't too large a stretch to see it impacting healthcare.
This is all a bit besides the point though. The point is there are many physiological differences between trans-women and women and that trying to conflate the two as being equal actively harms both groups. It's a social feel-good statement said by people who's identity is more important to them than reality and any of the negative externalities caused when adhering to their view of the world.
As far as I am concerned, letting trans-women compete in any physical sport against cis-women is harmful to women and the concept of women's sports. There are biological reasons many sports are segregated by gender. I don't care if this hurts any feelings because it's reality and it is harmful to people to ignore reality just to avoid hurting some feelings.
Hang on: your doctor knows you're trans, but they don't know your birth gender, and you think they're too scared to ask, and that you'll get a slightly wrong dose and then you'll die.
Do you know how trans people on HRT respond to Ambien, as your first link brings up? I sure don't. Depends on why the drug works differently.
If you're scared that you'll die because your doctor thinks you're cis, tell them you're trans.
That doesn't mean you have to tell your doctor "I'm really a man, despite being a trans woman, and it's definitely important for you to store an M in your records because you might suddenly forget that I'm trans and also I'm sure my reaction to medicine is the same as a cis man's."
Just be an adult and talk with your doctor honestly.