So after cross country season, my left hip would hurt occasionally after races. Now I'm doing track and it doesn't hurt as much. But last weekend I ran the 3000 Meter race in a meet and now it hurts again. This time the pain is more intense. I also noticed that my left knee has been locking randomly, and my left calve feels tight. My hip hurts to the point where I have to lay on my right side at night. Any help would be appreciated. By the way, I'm a high school athelete.