Thoughts

Sorry ladies a little tmi but just a couple things going on with me the last two days. Yesterday I went to the bathroom # 2 a lot and today a few times but I'm also dry heaving like crazy. Having random on and off pain in lower belly and upper belly sharp pains. Went to the doctor's this last week and measured 40 weeks when I'm only 34 weeks. I'm all belly for sure. Has anyone heard that your bowels start to cleanse when baby is ready to come?
Doc wants me to get to 37 weeks and if I start to have contraction we will deliver early. I know little one needs to bake longer but this mama is so ready and huge. I can't even image how big I will measure next appointment in two weeks.  Everything is getting very hard to do now a days. 
Hope everyone is feeling okay.