Hi. I understand your concerns. You will need to undergo a detailed examination and investigations like chest x ray to look for infection. If it is normal you will need to undergo pulmonary function test which is needed for diagnosis and also to assess severity of bronchitis based on which treatment can be started. Consult a pulmonologist for the same. if you are from bangalore you can consult me at my clinic at hebbal kempapura. Details are given in practo. Hope your questions were answered. Thanks.