Ay, that fluttering or pulsing feeling can be nerve-wracking, I know! But please see your doctor soon, they can check kung ano exactly ang feeling mo and put your mind at ease, lalo na if it's persistent or paired with anything else. Better safe than sorry, mama!
A few of us moms in the group have worried about similar things, and palaging nag-recommend ang OB na better to get checked agad para ma-rule out anything and malaman kung normal lang.