I haven't read all of the responses yet, but I know "from whence you come." Stress wil do it. That combined with even the slightest health problem like issues with allergies from the seasonal changes, digestive upset, etc. Just a few weeks ago I was under a lot of stress and going through some health tests. When the storm was over, my DH told me how "hard" I had been on him. Thankfully he said it with a chuckle. My "advice" is that you step back, get a bird's eye view of the situation, and probably drop a few projects for a while.