Soldato
And yes I am blaming the doctor, he could have started treatment 3 years ago when I first complained about it instead of shrugging it off and pretty much telling me to get over myself, shockingly about a week later, headline news read that doctors were getting paid off by the government to keep people out of hospitals, my current doctor couldn't hardly believe what I was telling her when I told her about the previous doctor, the look of disgust on her face, wish I'd taken a picture.
If a doctor is quite happy shrug something like this off those years ago, then there's cause for alarm in my mind, so quite obviously, the patient, ie me, is highly likely to shrug it off too, it's easy for non smokers to say quit, it's an addiction, it's not that easy, some even say, harder to quit than heroin.
The doctor could have taken a different approach, but the responsibility is solely your own. You're responsible for choosing not to take action and give up back then, as you've done so now that a name has been given to the conditions you're experiencing. Giving up isn't easy, but it is possible for everyone and there was plenty of support available three years ago - you just had to want to ask for it or seek it out. If you take some ownership of this problem now, going right back to when you could have done something about it earlier, you're in a much better position to take ownership for your own health in the future.
My last cigarette was in February, my last vape in March. I'm 46. I've taken far too long to commit to giving up, probably for the same addiction reasons you've stated, but I chose to do so before my body began to give me signs to stop. My advice to help you get through it? Do NOT begin drinking more alcohol, as @BUDFORCE suggested. It'll dissolve your willpower. Use the support of the available programs, even medicated ones such as Champix, and develop coping mechanisms for those 2-3 minutes of craving. Begin exercising, even gentle - it'll help dull the craving. If you're tempted to replace cigarettes with food, find something healthy! I chose celery, and the only side effect was my wife being annoyed at the crunching.
You'll feel the benefits almost immediately.