The swing of the pendulum is just there and won't go away. I know it's tied to a flashback, but the flashback ended last night. So why am I still hearing the clock?

It's so bad that the others are hearing it. And somehow, all of us had the same flashback at the same time. Has anyone ever heard of that? It got so bad that I guess I kept passing out. Like I was dissociating but no one was taking charge.

I just need the clock to stop.