Lots of love coming to you and your wife - from little old NZ. To you for being such a wonderful Husband and to your wife for hanging in there. I do agree with Neckhammer. You must try elimination for longer than 7 days. Are you totally grain free, sugar free, processed free? down to the last bite ??? Ditch the dairy ! I have noticed that when I have a small amount of dairy, I get quite mucosy in the throat. I presume its the dairy because it only happens on the rare occasions that I have milk.
All the best of luck, and keep us posted on your progress.
"never let the truth get in the way of a good story "