All Groggy on The Western Front

One of my least favorite mental states is "Groggy". This is where you sort of feel dazed, tired and unable to think clearly. Additionally, you seem to yourself to be just following some old dead script, not really doing anything. You want to "snap out of it" but can't. You say things like "wuhhh" and you stare at things while trying to remember what it was you were...... It really kind of sucks, so you drink coffee but still I, uh, the uh, uh ......