"Short circuiting", YES! I use that one too -- for when the thoughts (if they could be called that) are like motions that are at all zipping by at weird angles, crashing and derailing. Or just sitting there

buzzing "duuuuuhh" like a mantra. Can't hold a thought, and randomly stop talking, having gone completely blank.
Your Incredible Hulk = my Rabid Wolverine (the ferocious beastie, not the character, though there is a perception of being adamantine

)
And "fragile", yes and sometimes "brittle" -- on the verge of being shattered.
(Duck's butt. Heehee.)
Keep 'em coming ---- only a few thousand more states of being to go!