[flamesabers]

The NP cannot but be aware of my breast development since she routinely rather thoroughly sounds out my heart and lung function with her stethoscope: I'm almost sorry that she hasn't commented.

Perhaps it's because as you say: it's not uncommon for older men to have gynecomastia? Unless you expressed a concern about it, or it was an indicator of a potential health problem, I don't see why she would say anything about your breast development.

I've actually had the opposite experience. The doctor didn't say anything why she was listening to my heart and lungs. Instead, near the end of the visit she mentioned her observation of my breast growth. While this may sound like a positive experience, I was a little annoyed about her automatic assumption that I was bothered or concerned about my breast development.