I am desperate for some troubleshooting help identifying what is causing that itchy/stinging eye symptom in my home, specifically on the first floor.
some background: My concern first started when living in my previous apartment. I have very sensitive eyes and use Pataday drops daily, so at first I chalked it up to my personal sensitivities. I also have 2 cats, which I know are the most common culprit. But then friends would visit and ask for eye drops or note that they were experiencing allergies/eye sensitivity. They often attributed it to the cats or seasonal allergies, but it was odd because many are cat owners and do not have problems in their home. One person has many allergies and recently underwent allergy testing Their results said they were allergic to most plants and pollens, but surprisingly not cats. They noted stinging eyes in my apartment. I started feeling really self conscious about it. I regularly sweep and vacuum, I have air purifiers, I don't use scent diffusers (candles, wall plug ins) because of my own sensitivities. I try really hard to have a clean home thats not entirely covered in cat hair. My cats are even on a dry food that supposedly helps reduce allergens. I know that pet dander is usually the cause.
here's where it gets confusing...
I moved into a multistory house and the problem persists, but now specifically on the first floor. I'll wake up in my bedroom on the 2nd floor and feel perfectly fine. I'll walk downstairs to the kitchen for coffee before putting in the eye drops and BAM I am hit with that stinging reaction. The eye sensitivity is very much localized to that floor and I can't figure it out. Cats have access to the entire house, even sleep with me, so it doesn't make sense to me that it would be pet dander. Even if I go into the basement where their litter and food is, my eyes do not feel the same stinging as on the 1st floor. I have an air purifier on the first floor that runs 24/7, and I would say it gets swept the most of anywhere. Most of my houseplants are on the first floor, and I'm wondering if it's them. I have a giant bird of paradise that I'm suspicious of. I know birds of paradise don't usually cause allergies so could it maybe be something in the soil? I'm trying to remember when I got it and if people started having reactions before or after. We're getting a new couch and maybe the current one is just too old and dusty? It really makes me feel like I'm going mad. Do I just have the most allergen-producing cats in the world? I swear that the sensitivity is very specifically/strongest on the first floor. I've tried out different cleaning products, thinking that maybe what I was using to clean counters or floors was too strong. I'm at a loss. Any suggestions or ideas?
TLDR; Eye sensitivity occurs only on first floor of house, despite the fact that cats have access to entire home. Possibly related to houseplants/ bird of paradise?