Hi doctor, when I was about 6 I was diagnosed with mild asthma. I only had symptoms during cold season, and then it eventually went away all together. I am now 18, and during the past year I have been getting chest tightness, low peak flow readings, and wheezing. Some doctors say my lungs are clear and its not asthma, and others say it is? What should I do. I am on advair, spiriva, and ventolin. Please help