kiff/tesspug I have allergies as well but mine tend to be more the seasonal variety; however, my sister was having a lot of symptoms and allergic to something and always had some form of respiratory problems and sinus infection - it took the doctors almost 20 years to get it right - she is allergic to wheat and after she changed her diet to gluten free about a year and a half ago she hasn't had any allergy symptoms nor any sinus or respiratory problems. If they can't figure out your allergies it might be worth looking into something as simple as a wheat allergy.
Now onto mini info - I have my pieces cut out and did a trial run to make sure it will work - all is merry and bright.
You all have a great day!