Yeah, that makes a lot of sense. My anxiety doesn't last as long as twelve hours (that sounds horrific), and seems to come and go more frequently than that.

I haven't tried meditation, although at least four or five people have suggested that I try it. We do it sometimes as part of my yoga class, and I always feel a lot better afterwards, but mostly I find it really difficult. I've never heard of Mindfulness - will Google after this.

Thanks for your advice.