Response from Robert J. Frascino, M.D. ...Western Blot, which turned out to be negative. A reactive ELISA plus a negative Western Blot is considered to be a negative HIV test.. There are many potential causes for a falsely reactive ELISA test, including cross-reacting non-specific...
1 Asthma is an inflammation and narrowing of the airways that can cause shortness of breath, wheezing, chest tightness, and coughing. 2  Pneumonia is lung inflammation that is caused by infection. 3  Symptoms may include shortness of breath, cough, chest pain, chills, sweating, fever, muscle pain, and exhaustion.
There are many causes for shortness of breath, from the benign and temporary to the more serious that may include: 1  Heart disease or heart attack (in this case, shortness of breath may be accompanied by swelling of the feet/ankles).  Lung disease.