here are some links to articles documenting adult onset allergies that may help you.(there are many more available on Google)
From what I have gathered, this is becoming more prevalent in our modern society
http://www.womentowomen.com/inflammation/allergies.aspx
http://blessed1.wordpress.com/2007/0...rgy-awareness/
http://www.allergizer.com/50226711/a...y_syndrome.php