cigarettes and cough suppressants

I've been smoking a lot lately. My health has been in steady decline and I'm losing even more weight but I don't really want to stop--I probably could if I wanted to but I don't want to. I don't care. As my immune system is in its steady decline I've contracted a cough--it's been pretty nasty and I think the smoking makes it worse, but it's nothing that a good cough suppressant won't fix.

As I stand in line at the grocery store with a bottle of Nyquil in one hand and a pack of Camels in the other, I think the attendant thinks I'm a bit off.