Hi, may I answer your health queries right now ? Please type your query here... I have a 9 year old daughter that complains of sever back pain and chest pain when breathing. she will also complain of pain shooting down her arm and leg. She has been seen by doctors and to the hospital three times, they have tested her positive once for a urine infection. Other times she has negative. apart from that they have found nothing wrong. What other steps can we take, would a ultra sound be any good.