it seems (based on the symptoms you told) you are having allergy
problem. Our respiratory tracts are sensitive to some conditions like temperature changes, entry of foreign substance like dust, bacteria and so on. It is a normal protective mechanism. But for some people it will be little bit more sensitive and that is called allergy! this is not a disease as it is.
But depending upon the severity we have to treat the condition with either conservative measure like steam inhalation, avoiding dust, avoiding very cold environment, avoiding some food items causing the allergy.
Feel free to chat with me in private to get a good solution for your problem. Thank you.