I've had this soreness on the bottom of my left foot for a few days now, and it hasn't gotten any better, so far. It hurts when I step on it, which causes me to limp. The area is a bit swollen and a bit tougher than the same spot on the right foot. The pain is similar to a sore muscle, but it feels more intense, maybe due to my weight putting pressure on a small area.
Anyone else experience this? I've done some searching, and have yet to find anything similar to this. I'm trying to find out how serious it is, and if there's something I can do to alleviate the pain.
Here's a diagram with the problem area circled in red.