It often happens to me to have dreams where i know im sleeping and i want to wake up but i cant. and i try with all myself to wake up but for some reason i cant.

so i try to scream (to wake myself up or so that maybe someone would come to me and help me waking up for real) but 1) no sounds come out or 2) i moan (and hear myself moaning with my real body) and i keep dreaming im waking up but then realize in reality im still asleep.
And it happens multiple times in a row (me trying to wake up in the same dream) until i finally do actually wake up.

Usually these dreams are very disturbing, scary, distressing and anguishing.

Anyone else have these kind of dreams? what could they mean to you?