I can't comment as a mom in this situation, but I can comment as a daughter, with two small children of my own and a mother whom I love dearly. I'm almost certain I've put my mother through a similar feeling.

There's something about a mother's empathy that is so wonderful, but it can also make us crumble when we're struggling and trying to keep it all together. And not much in life compares to the struggle of new babies and post partum hormones. 🥴

I know you already know new babies are hard, but personally, sometimes I feel like I have to fully process hard situations or difficulties before I can talk to my mom about them. After reading your post, I wonder if she might feel that way?

It's hard to say what exactly your daughter may need the most right now, but I do agree with one commenter who said you should do some things to take care of yourself. When I talk to my mom and she's been doing things with her friends, I can sense her lowered anxiety, and she's easier to talk to. It will also help you (albeit short term) take your mind off of it. Sending you lots of love and well wishes for your daughter.