Dehydration and morning sickness

Mamabear
So I have hardly drank anything since I've been pregnant. Unless I have a soda and even then it's very limited because I felt like it didn't sit well in my stomach. My husband even has given me an IV a few times. So this maybe tmi (it is TMI) but I started throwing up today and nearly choked cause there was no fluid in my belly to help with the pear that was coming up. Well after that I downed some lemon water and I've noticed my ms isn't as bad. After all this time I thought my stomach couldn't handle the water. And I have drank two cups of water and still have no urge to pee. So that shows you how much I need.  So those of you having ms are you still drinking lots of water? How does your belly handle it? How are you staying hydrated??!