I hit my leg just below the knee on a glass coffee table 9 days ago. It swelled up the follwing day with a lg. knot which is still there.Five days after it happened my leg on both sides started bruising.All the way down to the bottom of my foot. The bruising is starting to turn a little yellow but is still pretty bad. There isn't really any pain but it's tender. How worried should I be? Should I still try to go see a doctor?