Have you every woken up in the wee hours of the night to find that you’re gripped by fears and anxieties that just didn’t exist in the light of day?

You can lie there awake in bed, in your comfortable home, maybe even next to a loved one, and find your thoughts circling like persistent vultures. And then the morning rolls around, and it’s almost impossible to recreate the sense of foreboding that existed just a few hours earlier.