The foot problem, as it turns out, was the result of bad posture - as were the back problems that had been plaguing me with increasing ferocity over the past couple of years. If you, dear reader, have been suffering from random lower back and/or foot pain, I urge you to read up on Esther Gokhale and the Gokhale Method without further delay.
At any rate, Gokhale provided me the key to the things I was doing wrong with my posture and how to correct them. To wit, keeping my lower back (lumbar) firm and curved in the proper direction, bending at the hip (rather than reversing the curve of the lumbar spine) when I need to bend over; and keeping my feet pointed forward, with the weight on the balls and outside edges, rather than walking duck-toed and pronating as I did in former days. And that was all it took to get my body working properly and pain-free once again.
In other news, I went to Portland with G and Bunny last week/weekend. We left SFO on Thursday and returned Sunday. The main purpose was to get Bunny familiar with PDX so that she knows where I'm moving to, and understands that I'm not moving because she did anything wrong. We had a great time. Bunny loves Portland, and apparently G is warming to it too. I wouldn't mind if G decided to move there too - but that's a whole 'nother drama, and subject matter for another post.
But the plan as it stands is that I'll finish out this calendar year here in SF, work as much as I can and build a strong resume, and move to PDX around the beginning of 2014.