6 weeks and flu like

I am 6 weeks today. The last few days the nausea and food aversions have hit full force. I am kind of feeling like I have the flu.... Headache, exhausted, slight body aches, feel feverish although it's normal temp, and just all over feeling like crap! I know pregnancy is hard but this is my first so just wondering.. Is this normal or is anyone feeling like this?! Thanks girls!