Oo, totally normal yan! A lot of us noticed na around that time, ang morning sickness at fatigue namin tumaas pa before it got better, pero sa iba naman they started feeling relief na, bawat pregnancy talaga is different. Since it's your first time and you're noticing changes, mas okay if you mention it sa OB mo next check-up, just para ma-confirm na lahat okay lang, lalo na kung big improvement suddenly.