Ahhh sayang, 23 minggu and gastric perih tu memang tak tahan, especially time first pregnancy! A few of my mum friends had the same thing, the baby is getting bigger so it pushes on the stomach, plus hormones make the acid worse. Try makan kecil-kecil but frequent, avoid spicy and oily foods for now, and drink more water slowly-slowly, tapi honestly if it's making you cry, you really should check with your doctor or gynae cos they can give you something safe untuk baby. Hang in there, mama!