Amazing what you pick up reading these forums. I've been feeling like s**t for the last week and half. Lethargic, heavy legs, sleepy but no fever/congestion. Ready to go see a doctor. Similar (but not as bad) to what I felt like when I took the antihistamine "Contact" years ago. Turns out, I was allergic to the active ingredient and it would knock me out. So I'm reading another thread entitled Aromatic Cedar and one of the posters mentioned people being sensitive or allergic to cedar dust. DOH! Just so happens I've been working on and off the last two weeks with some red cedar for an arched fence gate arbor, filing and sanding mortises to fit through tenons on front and back arches. Lots of fine dust generated in that process and of course the saw kicks up quite a bit even with a DC attached. So with no exposure for the last 36 hours I'm feeling normal. Might be a coincidence but I'm not taking any chances as it was too typical of a reaction for me to a allergen. I'll be wearing a mask or respirator from now on when generating dust from any kind of wood, particularly cedar.