Many people have chronic bronchitis. It's probably not even as chronic as you think. My kid has chronic coughing,bronchitis,asthma, and I assure you there is no COPD.
Those symptoms are more common than you think,especially in people with asthma. I think you need to get yourself properly evaluated by a pulmonologist in relation to all this. I also think you should not smoke anymore, and stay away from 2nd hand smoke too.
I don't beleive this doctor has evaluated you nor tested you in order to hand down this diagnosis. And worst off he was irresponsible because he is not treating you or managing your care. Why would he assume you have this illness and not speak to you about it? Very responsible of him!!
Please go see a specialist.