I would suggest you make sure you don't have any indoor mold. Mold in an apartment caused me problems some years ago. My understanding is that outdoor/natural mold is perfectly fine for most people (including me), but molds tend to incorporate whatever they consume into their spores, because molds prey on other molds so they try to arm themselves.
The problem is with manmade stuff like sheetrock, where the mold grows and then incorporates the binder chemicals into their spores, which are too small to see and yet get inhaled and then leech into our sinuses or whereever.
I've had problems in both work and home situations. I was tested and confirmed allergic; I don't think most people are, but it was rough for me. I'm always on the lookout for those water circles in drop ceilings; they're notorious mold colonies. Once a natural material stays wet for 12 hours, molds will begin to grow.
Just something you might be able to check off your list. Good luck.
The problem is with manmade stuff like sheetrock, where the mold grows and then incorporates the binder chemicals into their spores, which are too small to see and yet get inhaled and then leech into our sinuses or whereever.
I've had problems in both work and home situations. I was tested and confirmed allergic; I don't think most people are, but it was rough for me. I'm always on the lookout for those water circles in drop ceilings; they're notorious mold colonies. Once a natural material stays wet for 12 hours, molds will begin to grow.
Just something you might be able to check off your list. Good luck.