I Have Had A Very Deep Cough Since I Was

I have had a very deep cough since I was in my twenties. I frequently developed sinusitis and bronchitis. I had sinus surgery about 20 years ago. It seemed to help for a while. Then the cycle began again. I have been tested for allergies and I have none. Been told I had asthma then no I had reduced airways syndrome. I have been given Breo Ellipta and a steroid nose spray (have had nasonex and singular for years and now have been given axe lasting Hci). I also was given a round of prednisone. I take livalo for cholesterol and sertaline (150mg). Also just given levocetirizine to control the dripping. I am 68 and do not want to have 4-6 weeks each time recovering. But my legs are now killing me. I don't want to walk. I am actually dragging my legs! I also am concerned with taking singular, livalo, and levocetirizine befor going to bed. They all say may cause drowsiness. The legs are worrying me though. An internist, an ENT, a allergist, and a pulmonologist all chiming in with something different.