Thanks, guys.
No, we don't know the underlying issue (i.e. Grave's), but I kinda doubt that (knowing that I don't know poop from applebutter about it), because she was always borderline hypothyroid prior to pregnancy.
It makes me think it's the breakdown from back, steroids, then hormones from pregnancy...
THank you so much for sharing what you know and I'm so glad that mother and child are well.
KD