Sayang, jantung berdebar plus baby kurang aktif tu memang perlu perhatian, please go to your clinic or hospital sekarang jangan tunggu , okay? Better safe than sorry lah, especially time pregnancy ni. A few of my mum friends experienced palpitations during pregnancy (hormones, anemia, baby pressure semua boleh jadi), tapi combined dengan baby less active, doctor kena check properly lah. Jangan delay! Let me know okay how you go, sending you hugs.