Erm, I found that I had sort of a tightness in my throat? Maybe? It wasn't extremely noticeable. My voice experiences a drop every month or so. They were minor changes, but it happens fairly abruptly when it does drop.
When it cracks, I just find, it's almost like just getting cut off. All of a sudden the vocal chords don't want to vibrate the same and it just gets cut off into a squeak. I found at times I actually lost my voice and had trouble forming full sentences because I'd get cut off. Actually, I am experiencing that as we speak, lol. I'll say a word and it'll squeak away into a whisper. It's frustrating but not the end of the world.