Alamak, I understand lah, palpitations masa pregnant memang scary, apatah lagi kalau dulu kena warded! A few of us mums experienced that too, and honestly it's quite common sebab hormone changes dan heart workload naik during pregnancy, tapi memang kena monitor closely. Since you dulu pernah kena issue sampai kena stay ward, this time you really should inform your doctor or midwife dari awal sangat so they can keep track dan prepare if needed. Mana tahu kali ni better, tapi better safe than sorry kan, especially sebab history you ada.