I am having very mild cough for over a month which seems to originate from chest and not from throat. Feels slight irritated feeling in upper centre chest area majority of the time. Irritation and coughing seems increased if its cold or I am doing physical activity in a windy area. Don't get much mucous or sphagnum while coughing.Have had some acid reflux issues as well but this cough is there even when I have no acidity related problem.