I injured my shin last week. Although I never saw a black and blue mark, I felt pain that was almost the entire front of my leg. I had difficulty walking down steps, and had to be careful to wear a flat shoe. It was even tender when my bed sheets were against the leg. The painful area itself seems to be getting smaller, but yesterday I started having some swelling in the ankle. Should I be concerned or is this a very normal reaction of the healing process? Thank you!