Feeling yuck

El
I've been feeling achey and kind of yuck the past day, just a general feeling of unwellness. I don't think I'm sick bc I have no symptoms like fever or sore throat, no runny or stuffed up nose..
Anyone else get this in early pregnancy? I'm 6 weeks 5 days
I did get my flu shot 2 days ago and I feel like all my coworkers always complain after they get theirs but I've never had a problem with that!