A few weeks ago I wrecked my bike and could not get unclipped from my pedals. I banged my knee on the top tube and it has felt bruised ever since. The inner part of my knee (tibia I would say) is sensitive and feels like a deep bruise but I see no evidence. It was yellow green a few days afterward but looks normal now. It hurts when I do activities that involve running. Is it possible for a bruise to take over 2 weeks to heel?