What she ate has a large part in it too. If she ate something with higher carbs of more food her bg would go up. Sometimes stress will do it, If they had company, etc. Their BG is delicate. It changes on a whim. You can't let it upset you too much, just try and figure out what she might have eaten or done that might have done it and if you cant then it was just beyond your control. Sometimes they just do it. If you look at Racci's ss you'll see a pink come out of nowhere all of a sudden.
Melanie & Racci