Let's ignore the difference between sex and gender. Let's act like it is the same thing.

Ok, it might be bad to call yourself a woman towards a doctor when your body is one that a doctor would get accurate information about if you said man.

Now how many times in your life do you have to introduce yourself to a doctor where that information that the doctor could receive from your "male" body, isn't already known to them? Let's say 100 times?

So you shouldn't call yourself a woman nor want to be called woman when you feel like a woman, because there are 100 times an interaction that lasts a couple seconds. Because of those 6000secones, you can't/shouldn't be called a woman in the other 2207520000 seconds of your life. Noted.

Also I mean I am not trans and I haven't made the experience but I am fairly certain in the moments my sex is of medical importance, so would be the hormones that I took for years to cause my body to change towards the other sex. I would have to tell them about that anyway, almost as if I could say "I am woman, born in a male body and took hormones in my late teens" and the doctor had all informations in much better detail then when I called myself a man. Not sure though. I haven't made the experience.

Thanks for your input.