Astral projection or even sleep paralysis?

recently ive been going through some insane "dreams" i have a very hard time excepting the whole astral projection theory but what im going through is alot like what people describe it as. I wake up and try and sit up but i am violently vibrating and feel so shaky it feels nearly impossible to sit up but i finally manage it and i see my self still lying on the bed i have only gotten as far as my door and could not figure out how to open it. What is wrong with me? Or what does this mean?