Actually, while it's not as bad as con drop, I've noticed that I have a really small scale version in response to painting. Digital media offers endless editing ability with no drying time and perfectly opaque color, so it's much more possible to do something like complete painting stuff in a solid 2-6 hour sitting. Digital painting is a relatively new skill for me so it's not the "recharge" drawing is, and occasionally the amount of thought put in winds up being more intensive.

I've noticed that it's very easy to dump a batch of time and energy into something, and kinda crash out afterwards for hours (this is especially bad if I post what's basically an amateur/student improving to art archives - and there's a metric for its popularity compared to stuff by far more experienced, professional, or simply popular artists). I'm curious whether anyone else out there has had a similar thing with visual arts, writing or music.