hypnic jerk

Hi all, I have suffered with anxiety for as long as I can remember. I have really bad health anxiety right now. For a good whileI have noticed I am getting the dropping,detatched head rush jolt feeling you get when you are drifting off to sleep. The scary thing is I get this when i'm awake, sitting watching tv, on the laptop, chattingto someone in the supermarket... Anyone else had this experience? I find it really scary!!!

Are you tallike your head jerks when droping off to sleep or even awake at times? C you go into more details because I get that!

yes give more details because i think i have this, i get head rushes and i feel my head going numb and then i just jerk it as to wake myself up and i panic.