see my post about BORON & MOLD. very similar situation. I realize now the NS diet left me lethagic & depressed as well. I'm thinking the diet is basically starving your bodies of mineral content rather than nutients & vitamins. Your body shuts down and the AS symptoms stop getting worse, but you definitly don't get better...

I wonder if it really is the radon. Maybe the water is loaded with minerals? Jachymove is halfway around the world from New Zealand, so I might try the mineral cure here first. If that doesn't go well, I'll take a long holiday.

cheers for the info