My lungs began hurting at about 5 years in. I ignored it. To quit smoking the pipe was impossible. That grew steadily worse for the next 11 years, but not a lot worse, and quitting was impossible. All along when smoking if I began coughing or sneezing I'd congratulate myself as a way to keep smoking, and denying. About a month before I quit I knew time was up, but quitting was impossible. The day I quit I was smoking, and then I suddenly had the premonition that if I didn't quit, I was going to get seriously ill and have to go to the hospital. Quitting was possible. If I hadn't had to quit I never would have.
I hear that a number of old men keep smoking, but only a bowl every two a month. I have some inclination to try this, but after my experience with alcohol, that was incredibly difficult to quit, and stay quit, letting an addiction back into my life makes no sense.
But my heart is in the right place, envying you your smoking.