Oh, the Nausea

I was not ever sick at all in the beginning with either Noah or with this pregnancy. But, starting last night, I have been sick as a dog with what I assume feels like first trimester nausea yet I am now 37 weeks pregnant.

My friend next door just had her third via c-section last week and she said she had it and it is your body's way of "cleaning itself out." But this stinks! I slept maybe 2 hours total last night from discomfort and sickness and I have been weak with nausea all day.

Any of you other mom friends out there ever have this? If so, how long does it last and why is it happening? What'd you do for it?