Smoke without smoking

So, I’ve been off the cigarettes since january, but noticed something today that I’d forgotten about, but always been able to do. Its kinda like pressing up from the lungs for a short while, and then exhaling - it produces a little bit of what looks like smoke! Very very weird - I tried googling it but couldn’t find anything.

The funny thing is, I’ve always been able to do it, but always put it down to having smoke in the lungs from smoking.

Anyone have any ideas what the heck it is?

You’re dying. You have at most three weeks left to live. I’m so sorry.

Your mother was molested by a dragon. You are a Chinese demigod, I suggest you attempt to run up a wall.

Mold spores.

The extra pressure runs the motor a bit harder and it burns a little bit of hydraulic fluid. Nothing to worry about as long as you top it off every once in a while.

How to make smoke come from your mouth without smoking!

Water vapor. You have very moist innards!

Your innards are melting. The “smoke” is particles of innards.

You are forcing some of your soul out that way. Do it enough and you become a zombie.

It’s the magic smoke. Once it all comes out, you’re dead.

You are the Dovahkiin.

For very small values of Dovahkiin.

Fus roh cough cough

damnit. almost!!11!1!!