Hi. I can understand your concern.
Chronic cough is commonly seen in
bronchitis and
lung infection. Get a chest x ray done if it is normal, no need to worry for lung infection.
Possibility of bronchitis is more in your case.
So better to
consult pulmonologist and get done clinical examination of respiratory system and PFT (Pulmonary Function Test).
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 may need inhaled bronchodilators and inhaled corticosteroid (ICS)
Also avoid stress and tension. Avoid hot and spicy food. Avoid junk food. Avoid large meals, instead take frequent small meals.
Quit
smoking and alcohol if you have these habits.
Go for walk after meals. Keep 2-3 pillows under head in the bed to prevent reflux.
Loose weight if you are obese
Don't worry, you will be alright.
Hope I have solved your query.
Wish you good health. Thanks.