Hi. I have got a lower left lobe pneunomia half a year ago followed by many episodes of upper respiratory tract infections. At the same time, i have been experiencing stabbing pains in my lower lungs (especially the left) on and off but it kinda of worsen these few days. Earlier in the year, i consulted my specialist and family doctor on this , but they totally ignored me about this problem . I had an x-ray three months ago and the doctor says im fine. I am only fifteen and i am pretty worried about my condition. Kindly advise on this. Thanks a lot.