Night nausea

St

Hello I’m 9 weeks pregnant and wondering why I only get a bit nauseous at night? 4-6pm. Is that normal? I’m totally normal during the day. I also get these headaches where my eye start to hurt. One more.... I drink water when I can but my mouth/tongue is always dry! Can someone please help understand 🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻