Thanks for your question on Health Care Magic.
I can understand your situation and problem.
By your history and description, possibility of
bronchitis is more.
So better to
consult pulmonologist and get done clinical examination, chest
x ray and PFT (Pulmonary Function Test).
Chest x ray is needed to rule out other lung causes.
PFT is needed for the diagnosis of bronchitis.
It will also tell you about severity of the disease.
And treatment of bronchitis is based on severity only.
You need inhaled bronchodilators and inhaled corticosteroid (ICS).
Don't worry, with appropriate treatment, you will definitely improve.
Hope I have solved your query.
Wish you good health. Thanks.