Painful foot after driving?

The pain is at the bottom of my shin bone and the upper surface of my foot near when the shin joins to the foot. I first noticed the pain a few weeks ago when driving When I first noticed it it was only a slight pain. I do a lot of commuting to work. When I flex my foot upwards to press the clutch or break pedal in the car I was getting the pain. However now my foot is painful all the time (even when I am not moving it and it is beginning to get swollen). I suspect that driving has caused this, but I have no choice but to drive to work. I have adjusted my seat so that I am as far from the pedals as I can possibly drive safely at to reduce this movement with my foot, however the pain is still getting worse and worse.