Thanks for your question on Healthcare Magic.
I can understand your concern.
No, breathing difficulty is not normal in his case.
In my opinion, we should rule out bronchitis (inflammation of airways) in his case.
Since he was smoker and had pneumonia, he is prone for bronchitis.
And this bronchitis can cause breathing difficulty.
So better to
consult pulmonologist and get done
1. Clinical examination of respiratory system
2. PFT (pulmonary function test).
PFT will not only diagnose bronchitis but it will also tell you about severity of the disease.
And treatment of bronchitis is based on severity only.
He might need inhaled
bronchodilator (formoterol or
salmeterol) and inhaled
corticosteroids (ICS) (budesonide or
fluticasone).
Don't worry, he will be alright.
First diagnose him and then start appropriate treatment.
Hope I have solved your query. I will be happy to help you further. Wishing good health to your husband. Thanks.