Hi,

I get this sometimes. It seems to come in waves of 2 or three nights and then subside again. It's a horrible feeling and I sympathise.

I put it down to the meds I'm on (Fluoxitine), but I've also seen somewhere else on this site that someone said it is a particular state you can wake up in (hypnogogic, i think), that is almost like you're still dreaming when you wake up. This can apparently last for a good few minutes after waking and is normal.

Good luck and good night!