I've been hit 3 times by the Adpocalpyse now (The first time was years ago, before it was cool). I've also had a few random 'this video can't be monetized' messages in the past as well. Here's a video where I talk about what happened and how it's impacted my channels, without it sounding like the end-times.
I'm not saying it's like this for everybody! If it's worse for everybody else then this video might be even more important.