Have you done any journaling? It might help you focus. I had to listen very hard to my doc who seemed unable to understand me when we talked about symptoms to discover what words he liked. He needed me to use words like he used them, to quantify everything. It worked like this: I journaled about all aspects of what I was experiencing, then distilled it down into a brief synopsis.
I could relay a symptom then very briefly describe how it presents. Once I figured out how He talks, our communication became easier. I made the effort because he is one of the best docs in the country and I didn't want to waste his time or mine not communicating. In your case a word like unfocused; what does that mean to you? Figure it out for yourself, use as many ways to describe it to yourself so you can tell him later.

Some version of this might work for you. Best of luck