This is basically to Melissa, but I thought I'd post it here since at least
one other person said her ferret had similar symptoms.  This might be really
obvious, and since I've just come back I don't know how long Noodle's been
lethargic and snuffly, but do you have air conditioning on?  I'm finding
that Amelia gets snuffly and sneezey and sleeps a lot after a couple of days
of non-stop AC.  It doesn't seem to affect Cully as much.  If you do have AC
on, and it's cool enough at night to stand it, you could try taking a break
from it.  I'm probably way off the mark here, but it was just a thought.  I
hope Noodle's doing ok--
 
Regina, Cully, and Amelia the sneazel
[Posted in FML issue 1985]