since last two months i started cough with sputam mainly in the evening and mornings i got tested for chest x ray, blood test, sputam test and everything was normal and little infection in the chest and doctor told me i have little symptoms of copd or asthma. then later on since on week i experienced nose block and running nose and went to doctor then he said it was with some alergy and i got the isnophilia count tested and count is normal but nearing the higher limit then he gave me some tablets to use for 40 days. so with all this can you tell me what is my problem and what was the cause. i used to smoke for 20 years(3 to 4 a day) and stopped it completely from 1 year back. i consume liquor rarely