I injured my right knee last September. The fact that I work retail has seemed to be exacerbating things--I get off work and it's not only my knee (upper inside corner of the knee cap, roughly), but hip/butt muscles as well. I worked 8 hours on Saturday and was in horrible pain. I worked 8 hours today as well, and while my feet hurt, my knee and hip are okay. The only difference? Saturday I wore sneakers. Today, I wore Keen H2s. And now that I think about it, my long days got worse when it got too cold for me to wear my Keens to work.
I'm not entirely sure what's going on here, other than the fact that clearly my normal shoes are not helping.