Congratulations on 76 days of Freedom...I am 73 days free...right behind you. I am sorry you are dealing with anxiety. With anxiety it takes some work to decide what will help you...perhaps breathing techniques, meditation, finding a hobby, therapy with meds, etc.,
I can’t help with lung cancer, I am not a Doctor, however one cause is smoking and you are quit which is great.
~ gotcha in my thoughts ~ Colleen