Waves of nausea 8DPO

So I know I'm only 8DPO, but I seriously have been having nausea after eating since Tuesday night and this morning I had nausea when I woke up and had 3 sips of coffee. And again, I'm laying her now feeling nauseous. Ughhhh!!! I still get hungry though, I just feel nauseous anytime I eat meals. If I snack, I seem to be okay. And the other thing is, I have insane anxiety about anything gastrointestinal related so I'm trying not to panic. Has anyone else ever felt this at only 8DPO?