Over the last 4 days, when I wake up, I can't walk. When I turn my leg a certain way I feel as if I have a Charlie horse in my calf/ankle. It gets better throughout the day but it still hurts. In the morning or middle of the night the pain is severe. And, it's never the same position that hurts. Sometimes with my knee bent it's fine. Other times with my knee bent i actually scream because the pain is so bad. It seems it goes from my ankle to my lower back.