I was about to say... it sounds like Plantar Fasciitis. I was diagnosed with it back in April in one foot and a couple weeks later in the other foot. It's the devil. lol I bought a new pair of tennis shoes (Swiss!) called Ecco that I bought at Dillard's and they're fantastic. I have no idea how I walked in anything else before them. I do think they make shoes too that are better for work. They're a bit pricey though ranging at about $80-125. I also had to break down and buy those GoodFeet inserts which were VERY expensive, but well worth the price when you realize they'll last for life. And in general, I think all FMers, even those without Plantar Fasciitis should invest in some really great inserts like GoodFeet's.