Heart rate

Mi

My heart feels like it’s racing all the time. I saw a cardiologist around 19wks and wore a holter and it was “normal” despite me just standing around and it racing (145). My resting this week has been 85! Pre baby it’s 60. How is this normal? No one seems concerned but it doesn’t feel “normal” or “okay”… anyone else? Cardiologist said as long as it’s under 185 it’s okay.