Flu feeling

Mommy
Hey ladies. I'm 6 weeks today and literally feel like I have the flu. I don't have an actual fever but I feel so lethargic and nauseas but I haven't thrown up. I'm also gassy. As tired as I am during the day, I wake up so early in the morning to pee and have issues getting back to sleep. I feel like I have the flu, but I know I don't. Anyone else feel the same around 5-7 weeks?