I would bring this to the attention of your doctor. Sometimes after surgery, scar tissue can adhere to normal, growing tissue and create a "tight or pulling" sensation where the incision was. This MIGHT be what is happening with you since you were so young at the time and are still growing. It is nothing to become freaked out about, but it's far better to let the doctor know that SOMETHING is going on inside you. Please don't wait for the pain to stop...…...that's usually not a good decision. I wish you the best.