the former books the last days

Does anyone else get words stuck in their heads? Poems I understand, because of the rhythm, but words? Is this a common thing no one ever talks about? Or am I crazy?

In any case, I have the following words stuck in my head:

die ehemalige Bücher die letzten Tage

meaning, translated from German, the former books the last days, with a possible grammar error there too (likely it should be ehemaligen but that isn’t what my brain is saying).

So now I have random German phrases stuck in my head. My brain is a cacophony of random thought.