leg pain that is constant is not a good thing. If you got a diagnoisis to what it was, and yet they want to do more studies, be assured you need to do the test. If you have no medical insurance you can call your County, and see what help they can give you. They usually have a Medical program call medically indigient. If not go to the ER and tell them of the pain and request test. Most hospitals cannot deny you help, and if they do, they need to refer you to a hospital that can help you. Don't let money stand in the way of your life. Just be safe and not sorry.
Rose