I am 11 weeks pregnant. I have awful nausea and vomiting (just like with my other pregnancies). To complicate it, I also have kidney stones causing severe pain and more nausea and vomiting. I have been to the ER two times in the past week for the dehydration and pain. I only feel better for a day and then it starts up again...bad. How do I know when to tough it out at home or go to the ER? I feel like a pain in the butt when I have to go back.