I Was On Advair And Then Symbicort For 8 Years.

I was on Advair and then Symbicort for 8 years. I stopped taking Symbicort this February, after consulting with my physician. Could I still be experiencing withdrawal symptoms 4 months later? I assume that I could be, since I was on this med for so long. Almost every day I now need to use my rescue inhaler, I have a dry cough most days, and shortness of breath mostly at night.