Has anyone felt super full just with drinking fluids during early pregnancy?

I have had a little anxiety lately. I noticed that I feel full quickly if I just drink water and nauseous right after. I especially feel super nauseous if I drink super fast. I also noticed that I don’t feel that hungry unless it’s been a couple of hours I haven’t eaten and then I feel that’s super hunger feeling in my stomach. But otherwise I don’t feel hungry at all. I don’t know if it’s because I’am trying to eat healthy and my usual diet isn’t so healthy. I don’t if that takes away my hunger because I’am changing my diet. Has anyone experienced this? Sometimes I think the worst. What happens if it’s my gastritis that came back and it’s worse. Sometimes I think God forbid what happens if I have some stomach ulcer or cancer ( God forbid ) because I have eaten pretty crappy for the last two years since I have gotten an endoscopy and my gallbladder removed. Curious if this is normal first trimester feeling.