You could probably smoke three cig's a week for the rest of your life, and never have any health complications at all.
But You won't.
Either you'll get addicted (like the rest of us did) and smoke enough that it does cause health problems (not just lung cancer, either), or you'll get smart and quit now while it painless for you to quit.
If you really like pain, though, get addicted and try to quit. Or just get yourself a hammer and whack your thumb about 25 times a day. It's a lot healthier.