FHR....16w4d

Ok so this may be a weird question. And I’ve been debating even asking this for several days just because I probably know the response I’ll get, which will just scare me more. Please be gentle with the comments. I’m already hesitant to even see if anyone has experienced something similar. But anyway....here goes....

I have a Fetal Doppler (after a devastating loss in September, I’ve been highly on edge). I also am expecting identical twins. I check on them at least once a day to ease my mind. A few days ago I did my normal morning check and baby A was great. On to baby B and I hear what I thought was my heartbeat. Search around some more and can’t find anything else except the weird slow one. So I listen and it’s the “gallop” but only 68 bpm. I check my HR to make sure (because logically it’s mine, right?) and mine was 92. I checked and double checked and triple checked. The low one was Not mine. After an hour (and total panic) it skyrocketed to almost 190 bpm than evened back out to the normal 140’s. I had my MFM appointment the next day so I tried to stay calm. The next morning, Babies were looking great at my appointment and I mentioned what happened (and how I know drs don’t like moms having them for this very reason). She assured me that under 20 weeks the sympathetic nervous system was still developing and that baby was fine. She also suggested I put the Doppler away (actually wean off of it because she knows my past and my anxiety 🤷🏼‍♀️). Well something told me to check today. I hadn’t checked all day. FHR was back down and stayed down for nearly three hours before going back up. Needless to say this makes it harder for me to put the Doppler away. And I’m terrified that baby is dying. My mind is going to the worst place. I haven’t found much online in regards to periodic low FHR. And I’m trying to will myself to trust my highly specialized MFM dr. But I’m struggling. This can’t be right? She said that no woman has ever been followed around on a Fetal monitor 24/7. That we don’t know what babies do in there and what their HR are at all times. She’s not worried. I am. I need some more reassurance I guess. Or maybe similar stories with good outcomes? Sorry this is so long. I’m posting anonymously only because I’m super sensitive/scared right now and my feelings get hurt easily. 🤷🏼‍♀️

Edited to say, I counted the HR and did not rely on what the screen said. As a commenter pointed out, it’s never really accurate for her. Same for mine. I count each time to 15 seconds and than multiply times 4.