I haz the Drazi Death Cold. I felt fine yesterday; last night my sinuses were in RAPID FLUSH mode (I could feel the fluid building up and draining in realtime), and today I'm a shambling zombie. I can hardly focus enough to think.
As if this wasn't enough, trenching out the front foundation wall by hand has taken a serious toll on my lower back. I shovelled out the last couple of feet through to the step yesterday, which was almost all crushed rock, after finishing the job of chopping out the tree stump that sat in the middle of the front yard pretty much squarely on the direct path to the propane tank (which involved pulling a 70-80lb rock out from among the roots), and I guess this is my back telling me I've been overdoing it. When I woke up this morning it was all I could do to get to the bathroom and back to the bed.
No more digging for me for at least a few days. We shall direct the minions ... er, daughters ... to fill in the stump hole and do however much more trenching they can manage.