I think that is normal because of the toxins?
Thats because cigarettes are full of evil c rap your not meant to be breathing in
Dont smoke...that sensation is the nicotine high...
hint: it has to do with oxygen
STOP SMOKING before it kills or cripples you! It crippled me!
...but then again your second cigarette makes you forget that right? haha
that is because your brain cannot figure how all of a sudden you get stupid
Research what they use to make cigarettes - that's why. All those chemicals are NO good!