Has anyone gone through this?

Today was my routine prenatal appointment. I was good (prayed and ask God to help me to stay positive and to let me leave there with good results)from the time I checked in til the doctor came in. As she started to check the babies heart beat she is moving the doppler around my lower abdomen and I’m hearing a heart beat but noticed it’s not the babies it’s mines. The more she moved the doppler around the more my heart beat speeded up and I felt my anxiety rising. She stopped to ask me was I okay and I explained to her what I went through yesterday and that I’ve lost my last baby(@ 11 weeks). She reassured as

well as gave me her concerns about my heart rate. Not all dopplers are gonna pick up on the heart rate right away. Once she checked again the babies heart rate was at 140bpm. To ease my mind she did an ultrasound and the baby was moving around and looked like she or he was putting its thumb in the mouth. She referred me to a cardiologist to see if it’s my heart or just my anxiety that has my heart rate going up so high. Please keep us in your prayers.