I've been having contractions off and on and I can tell my body is preparing for labor. A little tmi…

I've been having contractions off and on and I can tell my body is preparing for labor. A little tmi but I've had diarrhea for a few days and all of sudden I'm constipated. I've been miserable trying everything natural to flush out my body but I don't want to take any medicine to force it out just in case it's because it isn't much since my body has been cleaning itself the lower my baby gets. Should I be concerned and call my doctor or just be patient and stay miserable in this heat that will do nothing but get worse.