It is best to have your daughter evaluated by a pulmonologist. The pulmonologist may recommend a variety of tests to assess her breathlessness, including a chest x-ray, spirometry, a complete blood count (CBC), and a complete metabolic panel. Depending on the results of the tests, the pulmonologist will recommend additional tests, such as an electrocardiogram (ECG) or a pulmonary function test (PFT). Additionally, the doctor can recommend taking medications to help manage her symptoms. It is important to monitor her closely for any changes in her breathing patterns.