So I was shopping with my daughter this weekend and we were standing together and discussing an item and all of the suddent it felt like someone hit me just below the kneecap with a baseball bat. I pull up my pant leg and I have a knot about 2 inches long and an inch wide and it is rapidly bruising. I know I didn't do anything to it, I was just standing there! I am pretty sure it was a blood clot. I now have a buise about 3 inches by 2 inches, and the knot is gone and it doesn't hurt anymore. I am worried about more blood clots though as one of the things I read about them is they can cause you to have a fever and I am always BURNING UP... my normal body temp is 96.8 though, so even when I do have a temp, my doc don't recognize it as one. Any suggestions?