Oh, why didn't you say so. Two completely different causes, with the same symptoms.
1) Boredom. The mighty INTJ brain needs consant meaningful stimulation. It can make do with intellectual junk food if it must -- for a time -- but then it has to discharge, either by silliness, getting drunk,
marathon video games, marathon sex, reading 300 pages of novel a day for several days running -- all of these are forms of "going on a bender".
2) Burnout. This can be emotional or (less likely) intellectual -- e.g. one has just finished a major marathon project at work, run past redline, or forced to navigate a long meaningless obstacle course of red tape; or breakup with a signifcant other. I don't *know* what's going on in this case but I surmise that some neurotransmitter or other (or maybe the generators of it) are burned out, or the binding sites saturated.
One has to do something totally the opposite in order to unstick the motor.