Cholestasis?

I'm 37 weeks today and I'm a FTM so I'm new to everything I had no idea what this was until I started reading up on it and now I'm nervous. For the past week maybe I've noticed I've been itchy. Not extremely itchy and it's more at night when I'm trying to go to sleep. And I've been throwing up again for the past week but its literally been only at night after I lay down. I have noticed my urine is darker and I drink plenty of water. And TMI but everytime I poop now its green..and more like diarrhea...any advice? I have my 37 week check this afternoon and I plan on sharing all this with my doctor but was wondering of anyone was up and could talk to me about this.