two ago I was hit in my quad and obviously very painful. About three days ago I have been getting extreme pain everytime I move the my leg. It’s starts in my knee and shoots down the front of my calf. I went to see my doctor and he stated it was IT Band syndrome. I don’t have any swelling or bruising. But it doesn’t seem to be getting better. My doc gave me stretches to do to help strengthen my IT Band. However, this seems to be different than any other injury I have had before. Concerned weather it could be a blood clot. Do I have reason to worry?