up in smoke

I used to smoke. I had a death wish or something and I smoked Camel cigarettes when I was annoyed and such by mundane stuff.
I stopped smoking shortly before I got marriaged. I'd bum smokes from friends after classes or at work but I didn't smoke anymore as far as my wife was concerned.

The last few days I've noticed I seem to smell a burning cigarette, or the smell of waking up to cigar gunk. I used to like cigars. When I'd blow my nose cigar gunk came out like dried blood from a bloody nose.
Now, I am annoyed because smelling burned stuff is what you hear as a sympton of a tumor a lot of times. No, I don't think I have a tumor, but the fact that I've been misplacing stuff a lot of late and have had a headache most days gives me pause.