Maybe the comment "I tell her I hit a plateau but moved by it watching my sodium and WW really doesn't tell you to watch and since then I lost 12 lbs" was bit of red flag for your doctor.
Most likely your doctor is hearing that you are following a diet yet not really following the rules or interpreting them to fit your weight loss goal. That probably concerns her.
You doctor is listening to you, she just isn't really understanding what you are trying to say. Next time you see her maybe bring her a list of your meals for the week before so she can really understand your choices.

But I don't think there is anything wrong with writing down your meals to better express your situation to your doctor.