Signs labor is near??

Ariel
Has anyone had "signs" labor is near. Not just loosing plug or water breaking but I mean like bodily changes. All day today I've done nothing but sleep, my body is so achy like I'm coming down with something and I've had diahrrea all day. I'll be 38 weeks on Thursday with my first so I'm just wondering did anyone else have "signs" like these before labor?