I have taken antibiotics for four months and I still feel ill?

My pulmonary specialist says it is interstitial lung disease, with an underlying disease causing it. He and the Internal Medicine physician ruled out vasculitis and lupus. The infectious disease control doctor tested me for Legionnaires’ disease and the test was positive. Whatever it is, is causing intestinal problems. I still have fevers, headaches, joint pains, shortness of breath, diarrhea, and am tired all the time. I have received four months of antibiotics and am now taking Zithromax without getting better. Could test results could have been wrong about Legionnaires’ disease?

Please request that your Infectious Disease doctor fax us the test results. You have not responded to therapy that should have been curative for LD.