I feel on my right foot four days ago, and have not been able to walk on it or apply pressure to it. I was a doctor Sunday and he told me I may have hyperextended a tendon in my foot. The pain has only gotten worse as well as the bruising. I have a dark blue bruise on the bottom of my foot in the center area of my arch, and around both sides of the back of my foot and my heel is also bruised. I am 20 year old female and I am about 105 pounds and 5 feet tall.