Thanks for your question on Health Care Magic.
I can understand your situation and problem.
By your history and description, possibility of either
bronchitis or
lung infection is more.
In both these conditions, patient has
cough, expectoration and breathing difficulty.
So better to
consult doctor and get done clinical examination of respiratory system, chest
x ray to rule out lung infection and PFT (Pulmonary Function Test) to rule out bronchitis.
You may need antibiotics, inhaled bronchodilators and inhaled corticosteroid (ICS).
So better to first diagnose yourself and then start appropriate treatment.
Hope I have solved your query.
Wish you good health. Thanks.