Nauseous..Moody....then Horny?

Saly • Mama 2 B 🤰🏻FTM🥰 Due 6/2020

FTM 21 weeks tomorrow. So my 2nd trimester has been pretty easy so far. Morning sickness has been gone since around week9. Only complaint is occasion lower back pain...... well today all of a sudden i started to feel nauseous again, then i started to feel moody and kinda irritated......then all of a sudden super super horny. My bf thinks im going nuts. Anyone else hormones going crazy?