Have you had yourself tested for various allergies including paint, Miss Chicken?
I am allergic to paints, varnishes, most perfumes and deodorants, some cleaning products etc.
I am not allergic to many things that trigger asthma in certain other people such as pollens, or animals.
Smoke, especially wood smoke, is also a bad trigger and is hard to avoid in Tasmania where wood heaters are a major method of heating houses (though the government is trying to discourage people from using them).