I went in because of low fetal movement. 28 weeks pregnant. When I went in my BP was high which it typically is when I get to ANY apt. So the doc took fetal heart rate which was strong but potentially sounded high. She sent me to labor and delivery who monitored my BP which went down to 107/73 and monitored baby heart rate and movement. They kept making me move side to aide so he would move. They also took an ultrasound and saw him head down. They took a blood sample from me and when they did that, the fetal hewrt rate drastically dropped and nurses came rushing in and hooked me up to ultrasound to confirm heart rate which there was. They don’t know why it happened. But monitored me for another 2 hours and sent me home as they were content with the outcome. Thoughts on this? Should I be concerned?