Could smoking be the cause of this, and if so, what problems might there be if I don't quit smoking?

I have a cough that doesn't go away for months, shortness of breath and phlegm. I have wheezing. Could this be due to smoking? What problems can happen if I don't quit smoking?
Give me relevant answers.

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Fishy · 36-40, F

Yeah, I would assume that it's smoking

If you need help quitting, I highly recommend reading Alan Carr's books,
Or watching some of the book summaries on YouTube

He has many useful tips and those books are well known to help people quit smoking, amongst other stuff

Hope this helps ☺️