Plantar Fasciitis. Neither the motto of an obscure branch of the military (Plantar Fasciitis! -- "always fibrous") nor the character in a Shakespearean play set in ancient Rome ("Greetings, Plantar! How fares the house of Fasciitis?", but inflammation of the fibrous strap-like structure on the bottom of the foot. That's likely what's been dogging my dogs the last several days, and will keep me on lower activity for a bit.
It can be caused by non-supportive shoes (check), flat feet (check), high-arched feet (definite no), sudden increase in activity level (not sudden, but the addition certainly keeps me busy), standing on hard floors for a long time (definite yes), and/or obesity (the exercise from working on the addition has made me lose a bit of weight and rearranged some of what I've got, but yeah, I could stand to lose a few more pounds). And common enough that they have pamphlets on it at Kaiser.
I certainly have lots of other stuff to do (like implementing Scary Bear's redesign on the Mt. Diablo Habitat for Humanity website that I maintain, or learning more about video and such for the media ministry at RLC), but it's frustrating as all get-out to have good weather and not be able to work on the house. Hmmph.