Is this the beginning of labor or am I just crazy?

Alyssa • Be true to yourself and the world will open up to you

For two checks I've been getting my cervix checked and both times they said I wasn't dilated but then after that day I started getting a really bad stomachache and diarrhea it's been like that since Wednesday and it's Saturday yesterday I started feeling my stomach tightened and loosen on and off mid afternoon into the night now today is the same thing all but I really intense pressure so I don't know does that mean I'm going in labor soon?