The word could be MUFFICH ("Ich fühle mich MUFFICH!"). Means something along the lines of: In a bad mood, offended, old, not fresh anymore. Smells (MUFFICH clothes). Stale (MUFFICH biscuits).(Source: http://www.mitmachwoerterbuch.lvr.de/detailansicht.php?Artikel=muffich&Eintrag1=1810)
I was looking for something a bit more fancy -- a word created by Freud or someone like that, with more letters in it, like Weltschmerz.
Far-from-new-gen (fahrvergnügen)Shit-I'm-old-as-Freud-e (schadenfreude)Schmerzy-something (twenty-something, thirty-something...)Sein-zum-Tode (Heidegger)
Now we're talking!"He looked out the window. It was raining. A dog barked in the distance. Suddenly, he started shaking. There it was again, that deep feeling of schmerzy-something."