@suetex I know all of my sensory and chemical sensitivities heavily worsened during the 12 years I lived in an apartment that leaked into my bedroom during every monsoon season. I reported this to my landlord every year I lived there, but no action was taken. The last time I reported it (eight months ago), an air quality/mold testing was done and found three types of toxic mold discovered in the ceiling above my bed and around the perimeter of the two bedroom windows (behind bookcases and blinds).
My landlord wouldn't fix it; insisted I move out.

I'm quite certain living in mold for 12 years strongly kicked the MCAS into high gear.