Hello Colleen @colleenyoung, I read the various tips provided by many members. ALL super great! One mentioned "avoiding the use of medical language" (or words to that effect). I found that it is true at times, less so at others. I have had both experiences.
I remember a doctor I was seeing about a sinus infection; when I explained my symptoms, I mentioned a "purulent discharge". He asked me: "And how do you know these big words?". I wasn't a child and it wasn't a compliment, it was stated in a very ironic and demeaning voice and a body language to match! Didn't go back.
But, I have met a lot of doctors who are the total opposite, so I would like to recommend the following: Don't change yourself to "adapt" to the doctors you will be seeing. Being prepared for your medical appointment is a positive thing, and if your vocabulary includes "Big Words", good for you! It only means that you know medical terminology that applies to your condition(s). If you find that your doctor is not receiving your information with a positive attitude, you can choose a different doctor. I did, and never regretted any of those changes.
A hug to all!