From few week i am suffering from taking breath.its difficult to breath all the time and my right side of back tight feel like muscles are thight when breath taking..but some time sudden its bit normal.i have a wet coughy and itchy feeling in lower trachea and chronic throat clearing.. Previous history of the same issue: I have a frequent cold catch tendency since from my childhood..and even a year ago my cough was not cureing its take a time of months to cure but on that time i dont have this breathing difficulties..on that time doc also done a lung function test which showed my ESR was high