Eighteen years old woken by shaking and unable to move limbs

Patient: I woke up from sleep shaking and unable to move from the neck down, i could hear the television in the background but couldnt figure out what was on in the foreground i could hear a noise that sounded like raindrops on a window. i had to really focus my energy on moving my arms and legs. this has never happened before and i wondered whether it has anything to do with my busy lifestyle or stress id also like to know what it was?