Ayyy I feel for you, GERD during pregnancy is the worst! A few of my mum friends had the same issue and they said it got better after first trimester, but since yours is quite bad and affecting your eating, better to follow up with your gynae or doctor again lah, maybe they can adjust your medication or suggest other options that work better for you. In the meantime, one of them swore by eating smaller meals, avoiding spicy/acidic foods, and sleeping with extra pillows to keep her head elevated, tapi ini memang kena tanya doctor first to make sure it's safe for your baby and your pregnancy. Hang in there, it does get better!