I'm sorry you are going through this. My experience with most doctors has taught me not to count on them for much except being guardians of records. Even in that role I have learned to get a copy of all my tests whenever possible. I have finally figured out how to deal with them in the most advantageous way possible since I need them to order test, etc.
I am effected by changes in the weather including rain. I believe for me it is the humidity. I have seen other posters indicate change of temperature especially extremes are a problem. I wouldn't think it is out of the realm of possibility that your symptoms could worsen from this. It would be something you could ask your new doctor but I'm not sure what you'd be told.

pinkynose