12/30/15 - 1545. My 17 year old son had slept from 6am to now, standing in hall, knees buckled, fell to ground, heard moaning, husband saw body shaking 3 or 4 times, came too quickly, no drooling, no incontinence. Says he is there then on the floor, arms began to twitch and jerk again. Sat for maybe 5 minutes, then up and no problems. Had this occur at least 1 other time in the shower a few months ago