Fading away of morning sickness at 11 weeks

Yung previous weeks kasi (9 weeks- 10) dun nag worst ang morning sickness ko. Then suddenly, nung Saturday it's on 11 weeks and 4 days, napansin ko may gana na ulit ako kumain at hindi ako nagduduwal after. I don't feel extremely tired anymore unlike the previous weeks. Along with what I'm feeling now, there's no sudden or physical changes. Eto lang talaga napansin ko na hindi na ako nagduduwal at may gana na ulit ako kumain. Is this normal? Thank you.