As I was getting out of my, I don't know what happened, but once I hit the ground the foot suddenly started to the point that I could not put any pressure on it. I didn't twist it. There is no major swelling, bruising, or discoloration. It hurts to put any weight on it. It is only in the left foot. It hurts in the ankle down to the sole. I think it is either a stress fracture, or a sprain. What do you think?