hello, I have a cough that has gone on for years. mostly dry but about 50% of the time It produces a clear or white phlegm that can be watery or very thick, almost jelly like. ido have allergies, postnasal drip and use symbicort for COPD. I also smoke 1/2 pack cig.a day I also have GERD and take Prilosec 40mg in the am and ranitidine, 1 at bedtime. I do have shortness of breath a lot upon slight exercise,walking,reaching up etc.