I agree, Jcb, the Alice in Wonderland quotes are some of the best. The one that best fits me, that you posted is...
~ I knew who I was this morning, but I've changed a few times since then ~
Some times, though, I change multiple times, not just a few.
I think many people do depending on the weather, noise volume in head, how many stupid people you have to deal with on that day haha well unless you have multiple personality disorder then that's a whole different conversation