Asthma , Bronchitis , Smoking , Dry Cough

I have been having problems with asthma and bronchitis lately. I take symbicort 2 times a day. Xopenex as needed.
I also have had bronchitis last 3 weeks and given antibiotic but still have really bad dry cough. It sounds like a crackle when i cough but lungs sound clear. I also smoke but not that much. I am going to see pulmonary doctor next week. I have had ct scan last year and everything was good except for extra tissue on right side of chest. I also take tesslon pearls for cough. I get these violent coughs usually at night. What do you think is wrong with me?