Am I the only one?

Just now, and for the whole of today, my phone had been running incredibly slow, to the point where it froze... not sure what the hell happened, but even after it seems fixed, I feel like my phone has gotten slower.

Note, I've already cleared all my caches, so surely this is something else entirely? Also, hoping there's a way to transfer all my phone data someplace else, I don't wanna risk losing all this.