*hugs* Wish I could help, but I hope it does just turn out to be lack of sleep.

The sentiment is appreciated :-)

Yes, I feel much more stable this morning, though I wish I could have had another two or three hours of sleep (on top of the nine I actually got!) so it looks as if tiredness was indeed the culprit.

Why I couldn't have had that happen to me on a Sunday morning instead of a Monday I have no idea. Bah.