So I was just running around, not doing much really, and I received that exact message in my chat log. I noticed that some of my stats dropped, but I don't have any attribute points to distribute. I can't really find an answer to why.

I've read possibly food plays a factor. Also read that maybe something to do with my GC. I was recently wearing a few pieces of GC gear that gave bonuses, but changed them out for better gear over the last few days. Maybe there was a latent effect that had a timer after having removed the gear. Really not sure. It's not a huge change really, but I am curious.