I've been diagnosed with Generalized Anxiety Disorder for a long time now, but for a while it was very dormant; I'd get unnecessarily anxious over certain triggers and then it would spread, but otherwise it was pretty laid-back. 

Recently, however, I've had a pretty big money/debt scare, and it seems like ever since that day it's sort of revived the "generalized" part of that disorder. When I wake up, I'm anxious. Throughout the day, I'm anxious. The only reprieve is at nighttime, for some reason, but that means that during the day I do little else than lie down with my eyes closed and wait until the feeling passes, only for it to crop up again later. It's not even tied to thoughts anymore, I could be completely distracted and still feel horrible. It's almost impossible to do anything it's so crippling. 

Does anyone have any... advice, I guess? Or at least some familiarity with this sort of thing? An event sort of flicking a switch, and no matter how hard you try and calm down, you can never flick it back and go to your older, more comfortable headspace. It's been about a week now of constant anxiousness and I'll be honest, it's getting harder and harder to cope. 

(Deep breathing hasn't been working at all for me either. I just become more aware of the heart palpitations in my chest.)