Mental "word-salad"??

Is it normal to have mental word salad when I wake up, as in random strings of words popping into my head? and before I go to bed, insanely fast images flash through my mind as I'm falling asleep. They're actually really cool moving pictures that I wish I could jot down, but it goes so fast and is only there when my eyes are closed. A few years back I was hearing what sounded like radio adverts and morse code inside my ears (not in my head, and not from any external source). I have no psychosis and I've never done drugs so wtf? IIN??