She’s getting her first tooth.
That’s at least 2 months earlier than either of the other girls. Cate first came in when she was 8-8 1/2 months, and Meg’s was just a few days shy of 7 months.
I like to joke that Blythe was born 2 months old, and I think I might be on to something. She does everything so much earlier!
At least this explains the fussing as of late.