Ay normal na normal yan, mama! The bloating is usually dahil sa hormonal changes at slower digestion during pregnancy, kaya ang tama ng feeling na mabilis mabusog tapos gutom agad, nangyari din yan sakin around that time, and a few of my mum friends had the same experience. What worked for us was eating smaller, frequent meals throughout the day instead of big ones, plus lots of water, kaya less bloated feeling. But since you're still in your first trimester, best to mention it sa OB mo just to rule out anything and get personalized advice para sa'yo.