Morning sickness??

I'm so confused right now.

Three days ago I had the stomach bug, today I've been feeling nauseous again. I just can't tell if its morning sickness or not lmao. Like stomach is all blah. But idk if its cause I was just sick?? I'm 4 weeks, and with my first morning sickness was a lot worse so I don't know 🤷‍♀️😂