Signs Of Labor?

I am feeling: 

-nauseous. 

-has diherea and costipated. 

-period like cramps, in frontal pubic/pelvic area. 

The cramps are not constant, they come and go. Like I feel constipated but at the same time when I go it's diherea. Also I feel like the baby is kicking and moving around low in my pelvic/pubic area. I feel like she's just going to fall out.. She is very active, should she be slowing down by now?