Every so often when I'm really tired and I'm in the half sleep half awake stage I feel a heavy pressure and tightening in my chest and my body feels completly paralized. I don't think it's an anxiety attack because I've had those before. It lasts for about 30 seconds and then my body kind of comes out of it. I have no pain with it, I just get really scared I'm going to die in my sleep or something.
Optional Information:
Female , Age: 28
Already Tried:
I haven't yet.