I had this last night
OMG that was so horrible, it hurt so bad. I was sleeping and then suddenly i open my eyes i couldn't move all i can do i could move my eyes. I saw was my room, my pc was still playing music and i was feeling awful pain on my chest, and i had feeling someones in my room, but there wasnt anyone, pain get harder and harder and then i was running out of breath because of pain my chests were like constrict and i couldn't breath, i felt like i will die in any sec, but i waked up and i was so scared i couldn't go to bed for 2 hours.
I hope this will never happen again