I Have Had Productive Cough For 2 Months Now And

I have had productive cough for 2 months now and not getting better. It is worse in morning and at night. Some SOB and also chest feels heavy when I breathe in, makes me cough when I breathe in. Feels irritated.
Post nasal drip but also hx of GERD and Fibromyalgia. HX Allergies and right side deviated septum. Please help.