My chest feels weird. My heart feels weird. Am I dying?

Seriously? No robots do inhalants?
It's a pretty robot drug, I think.

> cheap
> gives brain damage
> done alone in the dark
> only people who don't give a shit about their lives would do it

I'm not an expert on the subject but a quick google search reveals that yes. Polyurethane is very dangerous and can cause chronic bronchitis and death especially if inhaled directly.

If suicide is your goal then keep going, it will not be a pleasant death and you will certainly regret not taking an easier escape route.

You really shouldn't do inhalants. Even apart from the brain damage, which clearly doesn't deter you, there are a number of very unpleasant ways to die doing it.

It makes your heart more sensitive to adrenaline and can cause cardiac arrest if you get startled (like, say, if you just got caught sniffing glue) and as you mentioned it can clog your lungs up and asphyxiate you.

Find a better drug, man.

https://en.wikipedia.org/wiki/Inhalant#Dangers_and_health_problems

Have fun destroying your body.