Less fetal movement

Hi, everyone. I'm currently 37w4d with my baby girl. She's my 3rd pregnancy. She's normally a super active baby- moving almost constantly. To the point that I get sore or nauseous! Yesterday and today, I'm counting "enough" movements but it's been nothing compared to what I'm used to. I went to my 37w checkup yesterday, and brought it up. But they said everything looked fine on her ultrasound. Today, she's moved some, but her kicks feel way weaker compared to normal. Has anyone else experienced this?