Update

After a day (and night) spent in bed recuperating, I feel much better now.  All it took was some Thai eucalyptus (rubbed under my nose), some chewable vitamin C tablets, a brand new box of tissues, a home-made nettie pot remedy, a couple antihistamines, several pots of herbal tea, and a few phone calls home on my new mobile for that extra umph!  And just like that, I'm all better!  Let's hope it sticks!