Roseola
mr. flea, worried about the rash, called the after hours nurse and got an over-the-phone diagnosis of roseola. Googling reveals that Casper has a textbook case. She'll be contagious for another day or so, so should stay home from new!nanny, but otherwise should be fine. I think the grumpiness is from another cause, though, since she doesn't seem to feel sick. Let's call it a phase - things are changing, she's crawling, so a little grumpiness at the changes.