I might be misinterpreting your question. Anytime she brought up issues with her birth control or hormones I validated and expressed my concern about her health. I did not try to provide advice in any direction.
During limbo I lost 15 pounds from the stress. I am already a skinny dude. My W expressed concern and insisted I see a doctor. She asked all about the appointment. I told the doctor straight up there is no medical issue, I am stressed out because my W wants to leave me. He offered to prescribe some anti anxiety medication. I declined. I knew my W may hold it against me, plus I wanted to handle things on my own. She kept asking about the appointment. I told her I was told to lessen my workload at work and get better sleep.
Two different medical situations: my W got curious and I took her concern very negatively as if it was self serving. I still do.
Let your W drive her medical decisions and stick to validating.