38 weeks

Sharp cervix pain that I've never felt before. I've have the cervix pain before but not like this. I've been feeling nauseous after I eat today but yesterday I kept throwing everything up. I was constipated yesterday and now today I have diarrhea. I'm having light/medium pressure cramps up front and my back/hips ache. I'm really irritable. I haven't lost my mucus plug and my water hasn't broken. I've been 1cm since 36 weeks. Could this be labor? Or labor coming soon?