Hi, thank you for your responses! She eats the same amount of hay everyday, not huge amount but normal, however I don't think she eats 80%. She has small appetite than my male rabbit as usual, but at least she eats everything.
For hay, I actually mix up with meadow hay (about 70%) + forage (15%) + readigrass (15%).
For nugget, not much, about 20g daily
For kale, about 5% daily
I don't see the issue of her teeth, as she likes to chew the branch from the meadow hay. Also, I don't think she's molting, just groomed her today. May be when she grooms my male rabbit that she swallows his fur, as he's slightly molting? However I don't see the fur in between the poos...