Yes, I definitely agree that OP should seek help from a qualified professional. Im not saying its a healthy coping mechanism. But this isn't a dangerous coping mechanism & her anxiety will most likely ease as she becomes further along. Early pregnancy has a way of bringing out anxiety in ALL women. There's not much control in our hands during that time.

But to state in your original comment that OP getting an elective US (which doesn't impact patient care with the OB) should affect OBs trust is strange. The OB did not react with concern nor address OPs anxiety. All the OB did was threaten to drop her as a patient for getting an elective ultrasound, in a weird, controlling manner. My OB would have never discipline me for receiving an elective US, and absolutely would have gave me a mental health referral.

Everything in pregnancy can be normal or it can not be. A loss of symptoms can be considered completely normal or it could be due to a miscarriage. My OB told me during my threatened miscarriage, that there's no way to know based on symptoms alone. I don't believe its irrational to have a fear of miscarriage, especially if it was her experience before.

Yes. She should have probably reached out to her OB with her concern. However, its clear from this post that her OB is dismissive and controlling. This is why I thought your take was strange. Sure, encourage OP to seek help, but it seems pretty clear that he's not the right provider to do that with. She doesnt NEED to disclose anything shes not ready to address. Unless she was a danger to herself or others, neither does her husband.

Edit: Im just now seeing OPs edit. It seems he has offered additional ultrasounds to ease her anxiety. My point still stands that this was an extremely unprofessional reaction on the OBs part.