Hi, Thanks for the query to H.C.M.
The formation of mucus in the lungs and in airways passage is a most common things in Allergic bronchitis
cases. When this mucus forms , this impact somewhere in alveoli of lungs.
This is the precursor of asthma
( an indication).
A healthy person who don't have any allergy
, also don't have mucus in respiratory system, so , if there is mucus formation it means there is allergy and mucus.
If these type of symptoms remains for three months in a row and for 2-3 yrs regularly than there are more chances of developing COPD
Since your's symptoms are suggestive of AAB ( Allergic Asthmatic Bronchitis) so please be careful and if possible pl avoid mite,dust,pollen,spray, fine powder etc as these are responsible for allergy.
Consult an allergy specialist and have a treatment for these complaints.
Regards. Dr. HET