I offered this observation last evening on one of the original threads on this subject. My (admittedly amatuer) observation is based on extensive reading on this subject brought about by familial and personal history.
Its an Intention Tremor, unusual in that it involves the upper body rather than extremities, but a direct result of both alcohol and stroke. Intention Tremors can also be inherited. (All the males in my family have them, but confined to our hands.)
Im taking my cue from the non-loss of consciousness, the violent shaking, the quick recovery and the subjects known medical history. Also the onset seemed to be *positional* - it occurred when she turned her head in a particular direction.
As noted, Intention Tremors are often positional.
Mine is in my left hand.
It is not there when the hand is supine, but appears as vigorous shaking (much like what Hillary displayed here) when the hand is pronated.
My guess is that she was temporarily dried out, had a good jolt of caffeine and hit that special nerve. They probably secreted her away with a bottle of booze and she was back to normal within a half hour.
Good Lord. That makes sense. My mother has that problem with her hands (both) also.
When they’re not moving they’re fine. When she carries something they shake bad.