The last one might be because some people (I’m kind of an extreme case) don’t pay enough attention to their own symptoms, and typically downplay the frequency, severity, or at the very least botch up the timelines fairly well.
Not only am I ADHD, I grew up in a household where I was constantly told to just ignore things and suck it up, so now it’s second nature to ignore my body and carry on. I feel like that’s also part of dealing with aging-related and chronic issues.
That’s still not an excuse for a doctor to confirm with his patient’s husband when the wife is the patient.
It is an excuse though, it’s not about being husband and wife it’s not about being a woman, it’s about getting a second opinion from a separate party because of the stuff that the OP mentioned.
Now, some doctors make their sexism more evident, but you can’t really judge them by that interaction, I’ve seen plenty that just try to confirm the story of the patient with the patients companion, regardless of gender.