Thanks for your question on Healthcare Magic.
I can understand your concern.
In my opinion, you should get done chest
x ray and PFT (pulmonary function test).
Possibility of either
lung infection or
bronchitis is more because both these can cause cough with chest congestion.
So chest x ray is needed to rule out lung infection.
PFT is needed to rule out bronchitis.
You may need antibiotic, inhaled
bronchodilator and inhaled
corticosteroids (ICS) on the basis of these reports.
Don't worry, you will be alright.
For speedy recovery, better to first diagnose yourself and then start appropriate treatment.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.