i've been having these dreams where within a dream scenario it seems like "I" (my "self" not my dreaming self but my actual self, if that makes sense) will seem to consciously think through to outcomes which will sometimes cause my head to get a "jolt". almost as if my brain is saying while i'm dreaming "don't go there". like if my dreaming self wants to transcend the upper limits of a "dream space" it seems like my head gets a "jolt" whenever i try. (thats just one example). is this dangerous, what i'm doing? what the heck is this all about? can i find more information? does any one know what i'm talking about? i can elaborate if needed.