That's fine, I understand it is quite crazy! We both had some health issues before we married, but they did worsen when we got married. Looking back I don't know why the priest let me marry in my state (my state is worse in some ways than my husband), it felt like he wanted to get rid of me or something. I do not wish to accuse the priest, but his behaviour was odd. I had been too poor to solve my problems for so long, so my husband provided for me and unfortunately we were misled by heath care providers that gave terrible advice and gave me new problems. We have always lived together after marriage, yes. I have thought of mold toxicity too, perhaps CIRS or something, I'm not sure. We do live in a poorly maintained apartment building but keep our unit as clean as we can, and have recently got an air purifier. People smoke like crazy inside the building sometimes, I'm sure that has affected us negatively.
I am very allergic to cats and dust and I get physically ill if I'm staying in a house and there's no air filtration/circulation. Our kids and my husband can tolerate it but I guess I'm more sensitive. What worked was putting on air filters on a box fan and lots of vacuuming. I also had to wear a respirator cause it's that bad. Could you do an air quality test? I would try to open the windows as much as possible.
Also, have you considered testing for Lyme disease?