It hurts when I run and when I am carring something heavy on my back such as a heavy backpack. The reason I am concerned is because I run cross country and there is a big race coming up. I recently went to the doctor 2 weeks ago for a similar problem in the same area and he thought that I needed tighter underwear and he thought a little urine got into my ball sack. I was concerned about the first pain cause I got it a day after dead lifting and lifting weights. Please help