Several years ago I worked
in a building and specifically
in an office that made me feel sick all
the time. Then
in an apartment where mold was such an issue both my son and myself were so ill but I could not prove it. In talking to other residents so many were experiencing the same issues.
Your situation is very serious and does not sound right. Especially given the age of each of you that got so ill. It might be worth talking to an attorney.