What you are describing may be emphysema, but it also could be some other respiratory problem. It is impossible to give you any accurate advice without having more information, such as lung function tests, possibly a chest x-ray. It is not uncommon for seniors to want to avoid seeing a physician when they are ill. They are generally afraid of being told they have something serious. However, without seeing a physician, there is little opportunity to make this condition better. I would recommend trying to gently convince your father to see a doctor.
Your father is refusing to seek medical help. Gently help him to do the this breathing exercise and it will make him comfortable and help him sleep.
- Deep Breath-in through left nostril keeping right nostril closed
then - Breath-out through right nostril keeping left nostril closed
then -Deep Breath-in through right nostril keeping left nostril closed
then - Breath-out through left nostril keeping right nostril closed
and repeat this cycle for upto 15 minutes. Maximum 3 times day.
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Start slowly for a few minutes and then increase to 15 minutes over 2 weeks.
Please come back to say how he is getting on.