Out of curiousity I just googled this and yes in some, weather extremes of hot and cold and also humidity can trigger allergy symptoms.
Before I was told this by my doctor I heard it on the 6 o'clock news that one can be allergic to the cold. My symptoms started off in Jan from what I thought was a sinus cold but what was different about
it was that I would feel normal in between sneezes and nasal congestion. When the sneezing didn't stop after several weeks I figured it must be an allergy of some sort or so I thought.
When they were referring to the cold I believe they meant extemes, because at the time our country was going through deep freeze temps of minus 35 to minus 40 and even though our furnace was running from Jan until mid April our house was freezing or so it felt very cold to me..
I am still unsure what made me sneeze daily for months, all I know is that I am better now, and hopefully will stay that way. Strangely enough this spring I don't have any spring time allergies which are usually problematic for me.
In my google search I read that people with FM tend to have an non allergic rhinitis which is sometimes triggered by the weather. Since I have CD and FM, could I have had a rhinitis spell?