Gosh. What a complicated situation. I really feel for your daughter.
I hope she's let her doctor know that she's stopped the beta blocker though.
KimmyDawn, you do know that one should never abruptly discontinue a beta blocker?
Correction: Yes, just re-read your message... you do know that.
My children developed a lot of problems after they were born, but my two pregnancies were care-free and just a breeze really. It's sad that it's not that way for everyone. I hope that everything runs smoothly in the weeks to come and that both mum and baby are both doing better.
Hope you're getting some rest there. No wonder you're worried.