One thing I have learned, if you are having problems with your doctor, it time to move on. I have replaced more than one that was not listening or had their own agenda. We are paying WAY to much for that nonsense. If possible, find the top guy in your area. For example, my cardiologist is also the professor at the medical college in this part of the state.
Funny story (now, not then) my wife was having problems with her breathing, not related to her asthma. Her GP looked at her and said her problem was she had wax in her ears! Next day she went to her asthma specialist, and he informed her she had pneumonia. Time to fire the GP and get a new one.