Dianne,

if you consider not doing anything there is only one way this will end. You are not talking about elective procedures here. At the same time do not go nuts with all kinds of scenarios that may or may not happen. Continuing to smoke will drastically lower you chance of survival, if that is a concern. This is a powerful experience to kick the habit once and for all. This I know first hand.
Once you have a battle plan things should settle down.

Best

M