I'm not a medical professional, but yes, I believe the smoking could have brought it on and I think it will take getting the nicotine out of your system to really help your asthma. I am so glad to hear that you are quiting.
I have an aunt who lives in FL, a retired nurse and a smoker, she's not that much older than me and we used to like to do things together. Even before I had asthma and just had allergies, she would take week to clean out her condo, open all the windows and I have to say, by the time I got there, I couldn't smell any smoke. She would smoke outside.
What I forgot to mention was that she had asthma and emphysema. She would tell me that smoking helped her asthma. Because I loved her, I didn't try to argue with her, I just thought, who are you really trying to convince.
She used to be my "young" aunt and was so active, rode her bicycle to the beach, played tennis and now she is living on 2/3 of one lung. My grandfather, her father, also died of emphysema along with some other issues.
I totally understand that smoking is one of the hardest habits to quit. I so hope you are successful in your quest to beat this habit. If you fall back one day, just pick yourself up,dust yourself off and start all over the next day. I'm in your corner as many other here at HealingWell will be. You are part of a big family now. We care about you and want only the best for you.
If you find yourself having a bad day during your "quit" time, come here and vent to us. We'll listen. I promise.