this is such a stupid narrative...
there is no such thing as "happiness". it's just a meaningless label that people put on things. again: this is basic marxism. if you can trick a slave into thinking she's happy, she'll tell you she is; meanwhile, the most free person in the world can get suicidal over existential dread.
there was a group of philosophers many years ago called verificationists that argued that statements that cannot be verified are completely meaningless. now, godel throws a wrench in this, granted. but, i remain of the opinion that "i am happy" and "i am unhappy" are equally meaningless statements, because there's no way to understand what they mean.
it is generally understood, however, that people that refer to themselves as "happy" tend to avoid drug use - and that people that use drugs tend to refer to themselves as "unhappy".
i'm not irritated due to a low happiness quotient. i'm pissed off because the drugs are making me physically ill, and less productive than i could be, otherwise. and, it's that lack of productivity that is making me frustrated.
i would be much happier if i could get a reliable intake of fresh air.