Water makes me nauseous and very itchy legs

K

I am 13 weeks 4 days and I’m worried I’m not drinking enough water. Even if I just take one decent size drink, I feel nauseous. I am on Zofran from my dr because I have been struggling with nausea and vomiting. This makes it very hard to stay motivated to drink. I also have very itchy legs/sides of my stomach. Any tips? Thanks!