Has anyone had the unfulfilling breaths and feel like you're waiting for the episode to 'shake' out? I have episodes that last anywhere from a few seconds to several minutes and trying to catch that real breath. I have to stand and block out all external stimuli to focus. My head sometimes needs to go side to side and the episodes always conclude with my head shaking rapidly as if I had just shivered-but only my head. The episodes Never resolve without the shaking.