Is Muscle Pulling Sensation Sign Of Prolapse?

Hi there I just had my third baby in February this year and I was told I prolapsed but I can t feel nothing down there I have not been a doctor about it. And for a while now I have been feeling like a pulling sensation if I move fast while I m laying down like a muscle pulling or something could this have anything to do with the prolapse or anything to do with labour I m only a small skinny person and I m 23 years old..