What is wrong with my body...Sleeping Problem...HELP!!?!!?

Its hard to explain but ever few nights i have this breathing problem like i'll open my eyes but i can't breathe and i get so scared i start to cry..and my body won't move like im covered in weights and my eyes are open but i can't exhale and inhale and i can't get out of bed or move my arms and legs...its just like being drowned under water with weights all over your body....i don't understand what it is but i sometimes think im going to die...do i have some condition or do i need to go see a doctor..its weird i can't explain it that well but its almost like im in a dream... also my bed starts to rock back and forth like im in the ocean on a raft....and the room starts to spin...such a terrible feeling...not being able to breath...having your body weigh a ton..not being able to move...having the room spin.....also my body is always burning up during these moments...